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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.6.0_17) on Sat Mar 27 22:46:13 EDT 2010 --> <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> <TITLE> BigMatrixImpl (Commons Math 2.1 API) </TITLE> <META NAME="date" CONTENT="2010-03-27"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="BigMatrixImpl (Commons Math 2.1 API)"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/BigMatrixImpl.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear"><B>PREV CLASS</B></A> <A HREF="../../../../../org/apache/commons/math/linear/BlockFieldMatrix.html" title="class in org.apache.commons.math.linear"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?org/apache/commons/math/linear/BigMatrixImpl.html" target="_top"><B>FRAMES</B></A> <A HREF="BigMatrixImpl.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> org.apache.commons.math.linear</FONT> <BR> Class BigMatrixImpl</H2> <PRE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.commons.math.linear.BigMatrixImpl</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</A>, <A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html" title="interface in org.apache.commons.math.linear">AnyMatrix</A>, <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></DD> </DL> <HR> <B>Deprecated.</B> <I>as of 2.0, replaced by <A HREF="../../../../../org/apache/commons/math/linear/Array2DRowFieldMatrix.html" title="class in org.apache.commons.math.linear"><CODE>Array2DRowFieldMatrix</CODE></A> with a <A HREF="../../../../../org/apache/commons/math/util/BigReal.html" title="class in org.apache.commons.math.util"><CODE>BigReal</CODE></A> parameter</I> <P> <DL> <DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> </FONT>public class <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.55"><B>BigMatrixImpl</B></A><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</A></DL> </PRE> <P> Implementation of <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear"><CODE>BigMatrix</CODE></A> using a BigDecimal[][] array to store entries and <a href="http://www.math.gatech.edu/~bourbaki/math2601/Web-notes/2num.pdf"> LU decompostion</a> to support linear system solution and inverse. <p> The LU decompostion is performed as needed, to support the following operations: <ul> <li>solve</li> <li>isSingular</li> <li>getDeterminant</li> <li>inverse</li> </ul></p> <p> <strong>Usage notes</strong>:<br> <ul><li> The LU decomposition is stored and reused on subsequent calls. If matrix data are modified using any of the public setXxx methods, the saved decomposition is discarded. If data are modified via references to the underlying array obtained using <code>getDataRef()</code>, then the stored LU decomposition will not be discarded. In this case, you need to explicitly invoke <code>LUDecompose()</code> to recompute the decomposition before using any of the methods above.</li> <li> As specified in the <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear"><CODE>BigMatrix</CODE></A> interface, matrix element indexing is 0-based -- e.g., <code>getEntry(0, 0)</code> returns the element in the first row, first column of the matrix.</li></ul></p> <P> <P> <DL> <DT><B>Version:</B></DT> <DD>$Revision: 811833 $ $Date: 2009-09-06 12:27:50 -0400 (Sun, 06 Sep 2009) $</DD> <DT><B>See Also:</B><DD><A HREF="../../../../../serialized-form.html#org.apache.commons.math.linear.BigMatrixImpl">Serialized Form</A></DL> <HR> <P> <!-- =========== FIELD SUMMARY =========== --> <A NAME="field_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Field Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#data">data</A></B></CODE> <BR> <B>Deprecated.</B> Entries of the matrix</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#lu">lu</A></B></CODE> <BR> <B>Deprecated.</B> Entries of cached LU decomposition.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#parity">parity</A></B></CODE> <BR> <B>Deprecated.</B> Parity of the permutation associated with the LU decomposition</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#permutation">permutation</A></B></CODE> <BR> <B>Deprecated.</B> Permutation associated with LU decomposition</TD> </TR> </TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl()">BigMatrixImpl</A></B>()</CODE> <BR> <B>Deprecated.</B> Creates a matrix with no data</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(java.math.BigDecimal[])">BigMatrixImpl</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] v)</CODE> <BR> <B>Deprecated.</B> Create a new (column) BigMatrix using <code>v</code> as the data for the unique column of the <code>v.length x 1</code> matrix created.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(java.math.BigDecimal[][])">BigMatrixImpl</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] d)</CODE> <BR> <B>Deprecated.</B> Create a new BigMatrix using <code>d</code> as the underlying data array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(java.math.BigDecimal[][], boolean)">BigMatrixImpl</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] d, boolean copyArray)</CODE> <BR> <B>Deprecated.</B> Create a new BigMatrix using the input array as the underlying data array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(double[][])">BigMatrixImpl</A></B>(double[][] d)</CODE> <BR> <B>Deprecated.</B> Create a new BigMatrix using <code>d</code> as the underlying data array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(int, int)">BigMatrixImpl</A></B>(int rowDimension, int columnDimension)</CODE> <BR> <B>Deprecated.</B> Create a new BigMatrix with the supplied row and column dimensions.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(java.lang.String[][])">BigMatrixImpl</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[][] d)</CODE> <BR> <B>Deprecated.</B> Create a new BigMatrix using the values represented by the strings in <code>d</code> as the underlying data array.</TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#add(org.apache.commons.math.linear.BigMatrix)">add</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m)</CODE> <BR> <B>Deprecated.</B> Compute the sum of this and <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#add(org.apache.commons.math.linear.BigMatrixImpl)">add</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> m)</CODE> <BR> <B>Deprecated.</B> Compute the sum of this and <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#copy()">copy</A></B>()</CODE> <BR> <B>Deprecated.</B> Create a new BigMatrix which is a copy of this.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#equals(java.lang.Object)">equals</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> object)</CODE> <BR> <B>Deprecated.</B> Returns true iff <code>object</code> is a <code>BigMatrixImpl</code> instance with the same dimensions as this and all corresponding matrix entries are equal.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getColumn(int)">getColumn</A></B>(int col)</CODE> <BR> <B>Deprecated.</B> Returns the entries in column number <code>col</code> as an array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> double[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getColumnAsDoubleArray(int)">getColumnAsDoubleArray</A></B>(int col)</CODE> <BR> <B>Deprecated.</B> Returns the entries in column number <code>col</code> as an array of double values.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getColumnDimension()">getColumnDimension</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the number of columns in the matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getColumnMatrix(int)">getColumnMatrix</A></B>(int column)</CODE> <BR> <B>Deprecated.</B> Returns the entries in column number <code>column</code> as a column matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getData()">getData</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns matrix entries as a two-dimensional array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> double[][]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getDataAsDoubleArray()">getDataAsDoubleArray</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns matrix entries as a two-dimensional array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getDataRef()">getDataRef</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns a reference to the underlying data array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getDeterminant()">getDeterminant</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the determinant of this matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getEntry(int, int)">getEntry</A></B>(int row, int column)</CODE> <BR> <B>Deprecated.</B> Returns the entry in the specified row and column.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> double</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getEntryAsDouble(int, int)">getEntryAsDouble</A></B>(int row, int column)</CODE> <BR> <B>Deprecated.</B> Returns the entry in the specified row and column as a double.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getLUMatrix()">getLUMatrix</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the LU decomposition as a BigMatrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getNorm()">getNorm</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the <a href="http://mathworld.wolfram.com/MaximumAbsoluteRowSumNorm.html"> maximum absolute row sum norm</a> of the matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getPermutation()">getPermutation</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the permutation associated with the lu decomposition.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getRoundingMode()">getRoundingMode</A></B>()</CODE> <BR> <B>Deprecated.</B> Gets the rounding mode for division operations The default is <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true#ROUND_HALF_UP" title="class or interface in java.math"><CODE>BigDecimal.ROUND_HALF_UP</CODE></A></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getRow(int)">getRow</A></B>(int row)</CODE> <BR> <B>Deprecated.</B> Returns the entries in row number <code>row</code> as an array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> double[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getRowAsDoubleArray(int)">getRowAsDoubleArray</A></B>(int row)</CODE> <BR> <B>Deprecated.</B> Returns the entries in row number <code>row</code> as an array of double values.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getRowDimension()">getRowDimension</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the number of rows in the matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getRowMatrix(int)">getRowMatrix</A></B>(int row)</CODE> <BR> <B>Deprecated.</B> Returns the entries in row number <code>row</code> as a row matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getScale()">getScale</A></B>()</CODE> <BR> <B>Deprecated.</B> Sets the scale for division operations.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getSubMatrix(int[], int[])">getSubMatrix</A></B>(int[] selectedRows, int[] selectedColumns)</CODE> <BR> <B>Deprecated.</B> Gets a submatrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getSubMatrix(int, int, int, int)">getSubMatrix</A></B>(int startRow, int endRow, int startColumn, int endColumn)</CODE> <BR> <B>Deprecated.</B> Gets a submatrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#getTrace()">getTrace</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the <a href="http://mathworld.wolfram.com/MatrixTrace.html"> trace</a> of the matrix (the sum of the elements on the main diagonal).</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#hashCode()">hashCode</A></B>()</CODE> <BR> <B>Deprecated.</B> Computes a hashcode for the matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#inverse()">inverse</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the inverse matrix if this matrix is invertible.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#isSingular()">isSingular</A></B>()</CODE> <BR> <B>Deprecated.</B> Is this a singular matrix?</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#isSquare()">isSquare</A></B>()</CODE> <BR> <B>Deprecated.</B> Is this a square matrix?</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#luDecompose()">luDecompose</A></B>()</CODE> <BR> <B>Deprecated.</B> Computes a new <a href="http://www.math.gatech.edu/~bourbaki/math2601/Web-notes/2num.pdf"> LU decompostion</a> for this matrix, storing the result for use by other methods.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#multiply(org.apache.commons.math.linear.BigMatrix)">multiply</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m)</CODE> <BR> <B>Deprecated.</B> Returns the result of postmultiplying this by <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#multiply(org.apache.commons.math.linear.BigMatrixImpl)">multiply</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> m)</CODE> <BR> <B>Deprecated.</B> Returns the result of postmultiplying this by <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#operate(java.math.BigDecimal[])">operate</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] v)</CODE> <BR> <B>Deprecated.</B> Returns the result of multiplying this by the vector <code>v</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#operate(double[])">operate</A></B>(double[] v)</CODE> <BR> <B>Deprecated.</B> Returns the result of multiplying this by the vector <code>v</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#preMultiply(java.math.BigDecimal[])">preMultiply</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] v)</CODE> <BR> <B>Deprecated.</B> Returns the (row) vector result of premultiplying this by the vector <code>v</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#preMultiply(org.apache.commons.math.linear.BigMatrix)">preMultiply</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m)</CODE> <BR> <B>Deprecated.</B> Returns the result premultiplying this by <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#scalarAdd(java.math.BigDecimal)">scalarAdd</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> d)</CODE> <BR> <B>Deprecated.</B> Returns the result of adding d to each entry of this.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#scalarMultiply(java.math.BigDecimal)">scalarMultiply</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> d)</CODE> <BR> <B>Deprecated.</B> Returns the result of multiplying each entry of this by <code>d</code></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#setRoundingMode(int)">setRoundingMode</A></B>(int roundingMode)</CODE> <BR> <B>Deprecated.</B> Sets the rounding mode for decimal divisions.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#setScale(int)">setScale</A></B>(int scale)</CODE> <BR> <B>Deprecated.</B> Sets the scale for division operations.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#setSubMatrix(java.math.BigDecimal[][], int, int)">setSubMatrix</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] subMatrix, int row, int column)</CODE> <BR> <B>Deprecated.</B> Replace the submatrix starting at <code>row, column</code> using data in the input <code>subMatrix</code> array.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#solve(java.math.BigDecimal[])">solve</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] b)</CODE> <BR> <B>Deprecated.</B> Returns a matrix of (column) solution vectors for linear systems with coefficient matrix = this and constant vectors = columns of <code>b</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#solve(org.apache.commons.math.linear.BigMatrix)">solve</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> b)</CODE> <BR> <B>Deprecated.</B> Returns a matrix of (column) solution vectors for linear systems with coefficient matrix = this and constant vectors = columns of <code>b</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[]</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#solve(double[])">solve</A></B>(double[] b)</CODE> <BR> <B>Deprecated.</B> Returns a matrix of (column) solution vectors for linear systems with coefficient matrix = this and constant vectors = columns of <code>b</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#subtract(org.apache.commons.math.linear.BigMatrix)">subtract</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m)</CODE> <BR> <B>Deprecated.</B> Compute this minus <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#subtract(org.apache.commons.math.linear.BigMatrixImpl)">subtract</A></B>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> m)</CODE> <BR> <B>Deprecated.</B> Compute this minus <code>m</code>.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#toString()">toString</A></B>()</CODE> <BR> <B>Deprecated.</B> Get a string representation for this matrix.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#transpose()">transpose</A></B>()</CODE> <BR> <B>Deprecated.</B> Returns the transpose matrix.</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> </TR> </TABLE> <P> <!-- ============ FIELD DETAIL =========== --> <A NAME="field_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Field Detail</B></FONT></TH> </TR> </TABLE> <A NAME="data"><!-- --></A><H3> data</H3> <PRE> protected <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.70"><B>data</B></A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Entries of the matrix <P> <DL> </DL> </DL> <HR> <A NAME="lu"><!-- --></A><H3> lu</H3> <PRE> protected <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.75"><B>lu</B></A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Entries of cached LU decomposition. All updates to data (other than luDecompose()) *must* set this to null <P> <DL> </DL> </DL> <HR> <A NAME="permutation"><!-- --></A><H3> permutation</H3> <PRE> protected int[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.78"><B>permutation</B></A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Permutation associated with LU decomposition <P> <DL> </DL> </DL> <HR> <A NAME="parity"><!-- --></A><H3> parity</H3> <PRE> protected int <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.81"><B>parity</B></A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Parity of the permutation associated with the LU decomposition <P> <DL> </DL> </DL> <!-- ========= CONSTRUCTOR DETAIL ======== --> <A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TH> </TR> </TABLE> <A NAME="BigMatrixImpl()"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.92"><B>BigMatrixImpl</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Creates a matrix with no data <P> </DL> <HR> <A NAME="BigMatrixImpl(int, int)"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.103"><B>BigMatrixImpl</B></A>(int rowDimension, int columnDimension)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new BigMatrix with the supplied row and column dimensions. <P> <DL> <DT><B>Parameters:</B><DD><CODE>rowDimension</CODE> - the number of rows in the new matrix<DD><CODE>columnDimension</CODE> - the number of columns in the new matrix <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if row or column dimension is not positive</DL> </DL> <HR> <A NAME="BigMatrixImpl(java.math.BigDecimal[][])"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.130"><B>BigMatrixImpl</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] d)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new BigMatrix using <code>d</code> as the underlying data array. <p>The input array is copied, not referenced. This constructor has the same effect as calling <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(java.math.BigDecimal[][], boolean)"><CODE>BigMatrixImpl(BigDecimal[][], boolean)</CODE></A> with the second argument set to <code>true</code>.</p> <P> <DL> <DT><B>Parameters:</B><DD><CODE>d</CODE> - data for new matrix <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>d</code> is not rectangular (not all rows have the same length) or empty <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if <code>d</code> is null</DL> </DL> <HR> <A NAME="BigMatrixImpl(java.math.BigDecimal[][], boolean)"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.150"><B>BigMatrixImpl</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] d, boolean copyArray)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new BigMatrix using the input array as the underlying data array. <p>If an array is built specially in order to be embedded in a BigMatrix and not used directly, the <code>copyArray</code> may be set to <code>false</code. This will prevent the copying and improve performance as no new array will be built and no data will be copied.</p> <P> <DL> <DT><B>Parameters:</B><DD><CODE>d</CODE> - data for new matrix<DD><CODE>copyArray</CODE> - if true, the input array will be copied, otherwise it will be referenced <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>d</code> is not rectangular (not all rows have the same length) or empty <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if <code>d</code> is null<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html#BigMatrixImpl(java.math.BigDecimal[][])"><CODE>BigMatrixImpl(BigDecimal[][])</CODE></A></DL> </DL> <HR> <A NAME="BigMatrixImpl(double[][])"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.189"><B>BigMatrixImpl</B></A>(double[][] d)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new BigMatrix using <code>d</code> as the underlying data array. <p>Since the underlying array will hold <code>BigDecimal</code> instances, it will be created.</p> <P> <DL> <DT><B>Parameters:</B><DD><CODE>d</CODE> - data for new matrix <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>d</code> is not rectangular (not all rows have the same length) or empty <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if <code>d</code> is null</DL> </DL> <HR> <A NAME="BigMatrixImpl(java.lang.String[][])"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.219"><B>BigMatrixImpl</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[][] d)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new BigMatrix using the values represented by the strings in <code>d</code> as the underlying data array. <P> <DL> <DT><B>Parameters:</B><DD><CODE>d</CODE> - data for new matrix <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>d</code> is not rectangular (not all rows have the same length) or empty <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if <code>d</code> is null</DL> </DL> <HR> <A NAME="BigMatrixImpl(java.math.BigDecimal[])"><!-- --></A><H3> BigMatrixImpl</H3> <PRE> public <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.249"><B>BigMatrixImpl</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] v)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new (column) BigMatrix using <code>v</code> as the data for the unique column of the <code>v.length x 1</code> matrix created. <p> The input array is copied, not referenced.</p> <P> <DL> <DT><B>Parameters:</B><DD><CODE>v</CODE> - column vector holding data for new matrix</DL> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Method Detail</B></FONT></TH> </TR> </TABLE> <A NAME="copy()"><!-- --></A><H3> copy</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.262"><B>copy</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Create a new BigMatrix which is a copy of this. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#copy()">copy</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the cloned matrix</DL> </DD> </DL> <HR> <A NAME="add(org.apache.commons.math.linear.BigMatrix)"><!-- --></A><H3> add</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.273"><B>add</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Compute the sum of this and <code>m</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#add(org.apache.commons.math.linear.BigMatrix)">add</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to be added <DT><B>Returns:</B><DD>this + m <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if m is not the same size as this</DL> </DD> </DL> <HR> <A NAME="add(org.apache.commons.math.linear.BigMatrixImpl)"><!-- --></A><H3> add</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.302"><B>add</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Compute the sum of this and <code>m</code>. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to be added <DT><B>Returns:</B><DD>this + m <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if m is not the same size as this</DL> </DD> </DL> <HR> <A NAME="subtract(org.apache.commons.math.linear.BigMatrix)"><!-- --></A><H3> subtract</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.328"><B>subtract</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Compute this minus <code>m</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#subtract(org.apache.commons.math.linear.BigMatrix)">subtract</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to be subtracted <DT><B>Returns:</B><DD>this + m <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if m is not the same size as this</DL> </DD> </DL> <HR> <A NAME="subtract(org.apache.commons.math.linear.BigMatrixImpl)"><!-- --></A><H3> subtract</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.357"><B>subtract</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Compute this minus <code>m</code>. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to be subtracted <DT><B>Returns:</B><DD>this + m <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if m is not the same size as this</DL> </DD> </DL> <HR> <A NAME="scalarAdd(java.math.BigDecimal)"><!-- --></A><H3> scalarAdd</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.382"><B>scalarAdd</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> d)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result of adding d to each entry of this. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#scalarAdd(java.math.BigDecimal)">scalarAdd</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>d</CODE> - value to be added to each entry <DT><B>Returns:</B><DD>d + this</DL> </DD> </DL> <HR> <A NAME="scalarMultiply(java.math.BigDecimal)"><!-- --></A><H3> scalarMultiply</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.401"><B>scalarMultiply</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> d)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result of multiplying each entry of this by <code>d</code> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#scalarMultiply(java.math.BigDecimal)">scalarMultiply</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>d</CODE> - value to multiply all entries by <DT><B>Returns:</B><DD>d * this</DL> </DD> </DL> <HR> <A NAME="multiply(org.apache.commons.math.linear.BigMatrix)"><!-- --></A><H3> multiply</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.422"><B>multiply</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result of postmultiplying this by <code>m</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#multiply(org.apache.commons.math.linear.BigMatrix)">multiply</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to postmultiply by <DT><B>Returns:</B><DD>this*m <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if columnDimension(this) != rowDimension(m)</DL> </DD> </DL> <HR> <A NAME="multiply(org.apache.commons.math.linear.BigMatrixImpl)"><!-- --></A><H3> multiply</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.456"><B>multiply</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrixImpl.html" title="class in org.apache.commons.math.linear">BigMatrixImpl</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result of postmultiplying this by <code>m</code>. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to postmultiply by <DT><B>Returns:</B><DD>this*m <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if columnDimension(this) != rowDimension(m)</DL> </DD> </DL> <HR> <A NAME="preMultiply(org.apache.commons.math.linear.BigMatrix)"><!-- --></A><H3> preMultiply</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.486"><B>preMultiply</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> m) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result premultiplying this by <code>m</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#preMultiply(org.apache.commons.math.linear.BigMatrix)">preMultiply</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>m</CODE> - matrix to premultiply by <DT><B>Returns:</B><DD>m * this <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if rowDimension(this) != columnDimension(m)</DL> </DD> </DL> <HR> <A NAME="getData()"><!-- --></A><H3> getData</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.497"><B>getData</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns matrix entries as a two-dimensional array. <p> Makes a fresh copy of the underlying data.</p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getData()">getData</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>2-dimensional array of entries</DL> </DD> </DL> <HR> <A NAME="getDataAsDoubleArray()"><!-- --></A><H3> getDataAsDoubleArray</H3> <PRE> public double[][] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.509"><B>getDataAsDoubleArray</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns matrix entries as a two-dimensional array. <p> Makes a fresh copy of the underlying data converted to <code>double</code> values.</p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getDataAsDoubleArray()">getDataAsDoubleArray</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>2-dimensional array of entries</DL> </DD> </DL> <HR> <A NAME="getDataRef()"><!-- --></A><H3> getDataRef</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.528"><B>getDataRef</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns a reference to the underlying data array. <p> Does not make a fresh copy of the underlying data.</p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>2-dimensional array of entries</DL> </DD> </DL> <HR> <A NAME="getRoundingMode()"><!-- --></A><H3> getRoundingMode</H3> <PRE> public int <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.538"><B>getRoundingMode</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Gets the rounding mode for division operations The default is <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true#ROUND_HALF_UP" title="class or interface in java.math"><CODE>BigDecimal.ROUND_HALF_UP</CODE></A> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getRoundingMode()">getRoundingMode</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the rounding mode.<DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math"><CODE>BigDecimal</CODE></A></DL> </DD> </DL> <HR> <A NAME="setRoundingMode(int)"><!-- --></A><H3> setRoundingMode</H3> <PRE> public void <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.547"><B>setRoundingMode</B></A>(int roundingMode)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Sets the rounding mode for decimal divisions. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>roundingMode</CODE> - rounding mode for decimal divisions<DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math"><CODE>BigDecimal</CODE></A></DL> </DD> </DL> <HR> <A NAME="getScale()"><!-- --></A><H3> getScale</H3> <PRE> public int <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.557"><B>getScale</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Sets the scale for division operations. The default is 64 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the scale<DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math"><CODE>BigDecimal</CODE></A></DL> </DD> </DL> <HR> <A NAME="setScale(int)"><!-- --></A><H3> setScale</H3> <PRE> public void <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.566"><B>setScale</B></A>(int scale)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Sets the scale for division operations. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>scale</CODE> - scale for division operations<DT><B>See Also:</B><DD><A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math"><CODE>BigDecimal</CODE></A></DL> </DD> </DL> <HR> <A NAME="getNorm()"><!-- --></A><H3> getNorm</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.576"><B>getNorm</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the <a href="http://mathworld.wolfram.com/MaximumAbsoluteRowSumNorm.html"> maximum absolute row sum norm</a> of the matrix. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getNorm()">getNorm</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>norm</DL> </DD> </DL> <HR> <A NAME="getSubMatrix(int, int, int, int)"><!-- --></A><H3> getSubMatrix</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.600"><B>getSubMatrix</B></A>(int startRow, int endRow, int startColumn, int endColumn) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Gets a submatrix. Rows and columns are indicated counting from 0 to n-1. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getSubMatrix(int, int, int, int)">getSubMatrix</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>startRow</CODE> - Initial row index<DD><CODE>endRow</CODE> - Final row index<DD><CODE>startColumn</CODE> - Initial column index<DD><CODE>endColumn</CODE> - Final column index <DT><B>Returns:</B><DD>The subMatrix containing the data of the specified rows and columns <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if row or column selections are not valid</DL> </DD> </DL> <HR> <A NAME="getSubMatrix(int[], int[])"><!-- --></A><H3> getSubMatrix</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.641"><B>getSubMatrix</B></A>(int[] selectedRows, int[] selectedColumns) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Gets a submatrix. Rows and columns are indicated counting from 0 to n-1. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getSubMatrix(int[], int[])">getSubMatrix</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>selectedRows</CODE> - Array of row indices must be non-empty<DD><CODE>selectedColumns</CODE> - Array of column indices must be non-empty <DT><B>Returns:</B><DD>The subMatrix containing the data in the specified rows and columns <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if supplied row or column index arrays are not valid</DL> </DD> </DL> <HR> <A NAME="setSubMatrix(java.math.BigDecimal[][], int, int)"><!-- --></A><H3> setSubMatrix</H3> <PRE> public void <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.701"><B>setSubMatrix</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[][] subMatrix, int row, int column) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Replace the submatrix starting at <code>row, column</code> using data in the input <code>subMatrix</code> array. Indexes are 0-based. <p> Example:<br> Starting with <pre> 1 2 3 4 5 6 7 8 9 0 1 2 </pre> and <code>subMatrix = {{3, 4} {5,6}}</code>, invoking <code>setSubMatrix(subMatrix,1,1))</code> will result in <pre> 1 2 3 4 5 3 4 8 9 5 6 2 </pre></p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>subMatrix</CODE> - array containing the submatrix replacement data<DD><CODE>row</CODE> - row coordinate of the top, left element to be replaced<DD><CODE>column</CODE> - column coordinate of the top, left element to be replaced <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if subMatrix does not fit into this matrix from element in (row, column) <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>subMatrix</code> is not rectangular (not all rows have the same length) or empty <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if <code>subMatrix</code> is null<DT><B>Since:</B></DT> <DD>1.1</DD> </DL> </DD> </DL> <HR> <A NAME="getRowMatrix(int)"><!-- --></A><H3> getRowMatrix</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.757"><B>getRowMatrix</B></A>(int row) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entries in row number <code>row</code> as a row matrix. Row indices start at 0. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getRowMatrix(int)">getRowMatrix</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>row</CODE> - the row to be fetched <DT><B>Returns:</B><DD>row matrix <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the specified row index is invalid</DL> </DD> </DL> <HR> <A NAME="getColumnMatrix(int)"><!-- --></A><H3> getColumnMatrix</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.773"><B>getColumnMatrix</B></A>(int column) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entries in column number <code>column</code> as a column matrix. Column indices start at 0. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getColumnMatrix(int)">getColumnMatrix</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>column</CODE> - the column to be fetched <DT><B>Returns:</B><DD>column matrix <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the specified column index is invalid</DL> </DD> </DL> <HR> <A NAME="getRow(int)"><!-- --></A><H3> getRow</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.793"><B>getRow</B></A>(int row) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entries in row number <code>row</code> as an array. <p> Row indices start at 0. A <code>MatrixIndexException</code> is thrown unless <code>0 <= row < rowDimension.</code></p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getRow(int)">getRow</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>row</CODE> - the row to be fetched <DT><B>Returns:</B><DD>array of entries in the row <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the specified row index is not valid</DL> </DD> </DL> <HR> <A NAME="getRowAsDoubleArray(int)"><!-- --></A><H3> getRowAsDoubleArray</H3> <PRE> public double[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.812"><B>getRowAsDoubleArray</B></A>(int row) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entries in row number <code>row</code> as an array of double values. <p> Row indices start at 0. A <code>MatrixIndexException</code> is thrown unless <code>0 <= row < rowDimension.</code></p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getRowAsDoubleArray(int)">getRowAsDoubleArray</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>row</CODE> - the row to be fetched <DT><B>Returns:</B><DD>array of entries in the row <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the specified row index is not valid</DL> </DD> </DL> <HR> <A NAME="getColumn(int)"><!-- --></A><H3> getColumn</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.832"><B>getColumn</B></A>(int col) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entries in column number <code>col</code> as an array. <p> Column indices start at 0. A <code>MatrixIndexException</code> is thrown unless <code>0 <= column < columnDimension.</code></p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getColumn(int)">getColumn</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>col</CODE> - the column to be fetched <DT><B>Returns:</B><DD>array of entries in the column <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the specified column index is not valid</DL> </DD> </DL> <HR> <A NAME="getColumnAsDoubleArray(int)"><!-- --></A><H3> getColumnAsDoubleArray</H3> <PRE> public double[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.853"><B>getColumnAsDoubleArray</B></A>(int col) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entries in column number <code>col</code> as an array of double values. <p> Column indices start at 0. A <code>MatrixIndexException</code> is thrown unless <code>0 <= column < columnDimension.</code></p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getColumnAsDoubleArray(int)">getColumnAsDoubleArray</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>col</CODE> - the column to be fetched <DT><B>Returns:</B><DD>array of entries in the column <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the specified column index is not valid</DL> </DD> </DL> <HR> <A NAME="getEntry(int, int)"><!-- --></A><H3> getEntry</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.878"><B>getEntry</B></A>(int row, int column) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entry in the specified row and column. <p> Row and column indices start at 0 and must satisfy <ul> <li><code>0 <= row < rowDimension</code></li> <li><code> 0 <= column < columnDimension</code></li> </ul> otherwise a <code>MatrixIndexException</code> is thrown.</p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getEntry(int, int)">getEntry</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>row</CODE> - row location of entry to be fetched<DD><CODE>column</CODE> - column location of entry to be fetched <DT><B>Returns:</B><DD>matrix entry in row,column <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the row or column index is not valid</DL> </DD> </DL> <HR> <A NAME="getEntryAsDouble(int, int)"><!-- --></A><H3> getEntryAsDouble</H3> <PRE> public double <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.905"><B>getEntryAsDouble</B></A>(int row, int column) throws <A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the entry in the specified row and column as a double. <p> Row and column indices start at 0 and must satisfy <ul> <li><code>0 <= row < rowDimension</code></li> <li><code> 0 <= column < columnDimension</code></li> </ul> otherwise a <code>MatrixIndexException</code> is thrown.</p> <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getEntryAsDouble(int, int)">getEntryAsDouble</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>row</CODE> - row location of entry to be fetched<DD><CODE>column</CODE> - column location of entry to be fetched <DT><B>Returns:</B><DD>matrix entry in row,column <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/MatrixIndexException.html" title="class in org.apache.commons.math.linear">MatrixIndexException</A></CODE> - if the row or column index is not valid</DL> </DD> </DL> <HR> <A NAME="transpose()"><!-- --></A><H3> transpose</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.914"><B>transpose</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the transpose matrix. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#transpose()">transpose</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>transpose matrix</DL> </DD> </DL> <HR> <A NAME="inverse()"><!-- --></A><H3> inverse</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.933"><B>inverse</B></A>() throws <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the inverse matrix if this matrix is invertible. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#inverse()">inverse</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>inverse matrix <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if this is not invertible</DL> </DD> </DL> <HR> <A NAME="getDeterminant()"><!-- --></A><H3> getDeterminant</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.943"><B>getDeterminant</B></A>() throws <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the determinant of this matrix. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getDeterminant()">getDeterminant</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>determinant <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if matrix is not square</DL> </DD> </DL> <HR> <A NAME="isSquare()"><!-- --></A><H3> isSquare</H3> <PRE> public boolean <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.962"><B>isSquare</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Is this a square matrix? <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html#isSquare()">isSquare</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html" title="interface in org.apache.commons.math.linear">AnyMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>true if the matrix is square (rowDimension = columnDimension)</DL> </DD> </DL> <HR> <A NAME="isSingular()"><!-- --></A><H3> isSingular</H3> <PRE> public boolean <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.970"><B>isSingular</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Is this a singular matrix? <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>true if the matrix is singular</DL> </DD> </DL> <HR> <A NAME="getRowDimension()"><!-- --></A><H3> getRowDimension</H3> <PRE> public int <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.988"><B>getRowDimension</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the number of rows in the matrix. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html#getRowDimension()">getRowDimension</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html" title="interface in org.apache.commons.math.linear">AnyMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>rowDimension</DL> </DD> </DL> <HR> <A NAME="getColumnDimension()"><!-- --></A><H3> getColumnDimension</H3> <PRE> public int <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.997"><B>getColumnDimension</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the number of columns in the matrix. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html#getColumnDimension()">getColumnDimension</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/AnyMatrix.html" title="interface in org.apache.commons.math.linear">AnyMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>columnDimension</DL> </DD> </DL> <HR> <A NAME="getTrace()"><!-- --></A><H3> getTrace</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1009"><B>getTrace</B></A>() throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the <a href="http://mathworld.wolfram.com/MatrixTrace.html"> trace</a> of the matrix (the sum of the elements on the main diagonal). <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#getTrace()">getTrace</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>trace <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if this matrix is not square.</DL> </DD> </DL> <HR> <A NAME="operate(java.math.BigDecimal[])"><!-- --></A><H3> operate</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1027"><B>operate</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] v) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result of multiplying this by the vector <code>v</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#operate(java.math.BigDecimal[])">operate</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>v</CODE> - the vector to operate on <DT><B>Returns:</B><DD>this*v <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if columnDimension != v.size()</DL> </DD> </DL> <HR> <A NAME="operate(double[])"><!-- --></A><H3> operate</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1053"><B>operate</B></A>(double[] v) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the result of multiplying this by the vector <code>v</code>. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>v</CODE> - the vector to operate on <DT><B>Returns:</B><DD>this*v <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if columnDimension != v.size()</DL> </DD> </DL> <HR> <A NAME="preMultiply(java.math.BigDecimal[])"><!-- --></A><H3> preMultiply</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1068"><B>preMultiply</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] v) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the (row) vector result of premultiplying this by the vector <code>v</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#preMultiply(java.math.BigDecimal[])">preMultiply</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>v</CODE> - the row vector to premultiply by <DT><B>Returns:</B><DD>v*this <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if rowDimension != v.size()</DL> </DD> </DL> <HR> <A NAME="solve(java.math.BigDecimal[])"><!-- --></A><H3> solve</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1098"><B>solve</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] b) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A>, <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns a matrix of (column) solution vectors for linear systems with coefficient matrix = this and constant vectors = columns of <code>b</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#solve(java.math.BigDecimal[])">solve</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>b</CODE> - array of constants forming RHS of linear systems to to solve <DT><B>Returns:</B><DD>solution array <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if this.rowDimension != row dimension <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if this matrix is not square or is singular</DL> </DD> </DL> <HR> <A NAME="solve(double[])"><!-- --></A><H3> solve</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html?is-external=true" title="class or interface in java.math">BigDecimal</A>[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1125"><B>solve</B></A>(double[] b) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A>, <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns a matrix of (column) solution vectors for linear systems with coefficient matrix = this and constant vectors = columns of <code>b</code>. <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>b</CODE> - array of constants forming RHS of linear systems to to solve <DT><B>Returns:</B><DD>solution array <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if this.rowDimension != row dimension <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if this matrix is not square or is singular</DL> </DD> </DL> <HR> <A NAME="solve(org.apache.commons.math.linear.BigMatrix)"><!-- --></A><H3> solve</H3> <PRE> public <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1144"><B>solve</B></A>(<A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> b) throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A>, <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns a matrix of (column) solution vectors for linear systems with coefficient matrix = this and constant vectors = columns of <code>b</code>. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html#solve(org.apache.commons.math.linear.BigMatrix)">solve</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>b</CODE> - matrix of constant vectors forming RHS of linear systems to to solve <DT><B>Returns:</B><DD>matrix of solution vectors <DT><B>Throws:</B> <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if this.rowDimension != row dimension <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if this matrix is not square or is singular</DL> </DD> </DL> <HR> <A NAME="luDecompose()"><!-- --></A><H3> luDecompose</H3> <PRE> public void <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1219"><B>luDecompose</B></A>() throws <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Computes a new <a href="http://www.math.gatech.edu/~bourbaki/math2601/Web-notes/2num.pdf"> LU decompostion</a> for this matrix, storing the result for use by other methods. <p> <strong>Implementation Note</strong>:<br> Uses <a href="http://www.damtp.cam.ac.uk/user/fdl/people/sd/lectures/nummeth98/linear.htm"> Crout's algortithm</a>, with partial pivoting.</p> <p> <strong>Usage Note</strong>:<br> This method should rarely be invoked directly. Its only use is to force recomputation of the LU decomposition when changes have been made to the underlying data using direct array references. Changes made using setXxx methods will trigger recomputation when needed automatically.</p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if the matrix is non-square or singular.</DL> </DD> </DL> <HR> <A NAME="toString()"><!-- --></A><H3> toString</H3> <PRE> public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1304"><B>toString</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Get a string representation for this matrix. <P> <DD><DL> <DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>a string representation for this matrix</DL> </DD> </DL> <HR> <A NAME="equals(java.lang.Object)"><!-- --></A><H3> equals</H3> <PRE> public boolean <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1336"><B>equals</B></A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> object)</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns true iff <code>object</code> is a <code>BigMatrixImpl</code> instance with the same dimensions as this and all corresponding matrix entries are equal. BigDecimal.equals is used to compare corresponding entries. <P> <DD><DL> <DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>object</CODE> - the object to test equality against. <DT><B>Returns:</B><DD>true if object equals this</DL> </DD> </DL> <HR> <A NAME="hashCode()"><!-- --></A><H3> hashCode</H3> <PRE> public int <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1366"><B>hashCode</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Computes a hashcode for the matrix. <P> <DD><DL> <DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>hashcode for matrix</DL> </DD> </DL> <HR> <A NAME="getLUMatrix()"><!-- --></A><H3> getLUMatrix</H3> <PRE> protected <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear">BigMatrix</A> <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1411"><B>getLUMatrix</B></A>() throws <A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the LU decomposition as a BigMatrix. Returns a fresh copy of the cached LU matrix if this has been computed; otherwise the composition is computed and cached for use by other methods. Since a copy is returned in either case, changes to the returned matrix do not affect the LU decomposition property. <p> The matrix returned is a compact representation of the LU decomposition. Elements below the main diagonal correspond to entries of the "L" matrix; elements on and above the main diagonal correspond to entries of the "U" matrix.</p> <p> Example: <pre> Returned matrix L U 2 3 1 1 0 0 2 3 1 5 4 6 5 1 0 0 4 6 1 7 8 1 7 1 0 0 8 </pre> The L and U matrices satisfy the matrix equation LU = permuteRows(this), <br> where permuteRows reorders the rows of the matrix to follow the order determined by the <a href=#getPermutation()>permutation</a> property.</p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>LU decomposition matrix <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../org/apache/commons/math/linear/InvalidMatrixException.html" title="class in org.apache.commons.math.linear">InvalidMatrixException</A></CODE> - if the matrix is non-square or singular.</DL> </DD> </DL> <HR> <A NAME="getPermutation()"><!-- --></A><H3> getPermutation</H3> <PRE> protected int[] <A HREF="../../../../../src-html/org/apache/commons/math/linear/BigMatrixImpl.html#line.1430"><B>getPermutation</B></A>()</PRE> <DL> <DD><B>Deprecated.</B> <DD>Returns the permutation associated with the lu decomposition. The entries of the array represent a permutation of the numbers 0, ... , nRows - 1. <p> Example: permutation = [1, 2, 0] means current 2nd row is first, current third row is second and current first row is last.</p> <p> Returns a fresh copy of the array.</p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the permutation</DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/BigMatrixImpl.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../org/apache/commons/math/linear/BigMatrix.html" title="interface in org.apache.commons.math.linear"><B>PREV CLASS</B></A> <A HREF="../../../../../org/apache/commons/math/linear/BlockFieldMatrix.html" title="class in org.apache.commons.math.linear"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?org/apache/commons/math/linear/BigMatrixImpl.html" target="_top"><B>FRAMES</B></A> <A HREF="BigMatrixImpl.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_bottom"></A> <!-- ======== END OF BOTTOM NAVBAR ======= --> <HR> Copyright © 2003-2010 <a href="http://www.apache.org/">The Apache Software Foundation</a>. 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