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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 22:46:15 EDT 2010 --> <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> <TITLE> BrentOptimizer (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="BrentOptimizer (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" 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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/optimization/univariate/AbstractUnivariateRealOptimizer.html" title="class in org.apache.commons.math.optimization.univariate"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../../index.html?org/apache/commons/math/optimization/univariate/BrentOptimizer.html" target="_top"><B>FRAMES</B></A> <A HREF="BrentOptimizer.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="#fields_inherited_from_class_org.apache.commons.math.optimization.univariate.AbstractUnivariateRealOptimizer">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: FIELD | <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.optimization.univariate</FONT> <BR> Class BrentOptimizer</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 "><A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html" title="class in org.apache.commons.math">org.apache.commons.math.ConvergingAlgorithmImpl</A> <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html" title="class in org.apache.commons.math.optimization.univariate">org.apache.commons.math.optimization.univariate.AbstractUnivariateRealOptimizer</A> <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.commons.math.optimization.univariate.BrentOptimizer</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html" title="interface in org.apache.commons.math">ConvergingAlgorithm</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/UnivariateRealOptimizer.html" title="interface in org.apache.commons.math.optimization">UnivariateRealOptimizer</A></DD> </DL> <HR> <DL> <DT><PRE>public class <A HREF="../../../../../../src-html/org/apache/commons/math/optimization/univariate/BrentOptimizer.html#line.32"><B>BrentOptimizer</B></A><DT>extends <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html" title="class in org.apache.commons.math.optimization.univariate">AbstractUnivariateRealOptimizer</A></DL> </PRE> <P> Implements Richard Brent's algorithm (from his book "Algorithms for Minimization without Derivatives", p. 79) for finding minima of real univariate functions. <P> <P> <DL> <DT><B>Since:</B></DT> <DD>2.0</DD> <DT><B>Version:</B></DT> <DD>$Revision: 811685 $ $Date: 2009-09-05 13:36:48 -0400 (Sat, 05 Sep 2009) $</DD> </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> </TABLE> <A NAME="fields_inherited_from_class_org.apache.commons.math.optimization.univariate.AbstractUnivariateRealOptimizer"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Fields inherited from class org.apache.commons.math.optimization.univariate.<A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html" title="class in org.apache.commons.math.optimization.univariate">AbstractUnivariateRealOptimizer</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#functionValue">functionValue</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#result">result</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#resultComputed">resultComputed</A></CODE></TD> </TR> </TABLE> <A NAME="fields_inherited_from_class_org.apache.commons.math.ConvergingAlgorithmImpl"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Fields inherited from class org.apache.commons.math.<A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html" title="class in org.apache.commons.math">ConvergingAlgorithmImpl</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#absoluteAccuracy">absoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#defaultAbsoluteAccuracy">defaultAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#defaultMaximalIterationCount">defaultMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#defaultRelativeAccuracy">defaultRelativeAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#iterationCount">iterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#maximalIterationCount">maximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#relativeAccuracy">relativeAccuracy</A></CODE></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/optimization/univariate/BrentOptimizer.html#BrentOptimizer()">BrentOptimizer</A></B>()</CODE> <BR> Construct a solver.</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> double</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../../org/apache/commons/math/optimization/univariate/BrentOptimizer.html#optimize(org.apache.commons.math.analysis.UnivariateRealFunction, org.apache.commons.math.optimization.GoalType, double, double)">optimize</A></B>(<A HREF="../../../../../../org/apache/commons/math/analysis/UnivariateRealFunction.html" title="interface in org.apache.commons.math.analysis">UnivariateRealFunction</A> f, <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html" title="enum in org.apache.commons.math.optimization">GoalType</A> goalType, double min, double max)</CODE> <BR> Find an optimum in the given interval.</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/optimization/univariate/BrentOptimizer.html#optimize(org.apache.commons.math.analysis.UnivariateRealFunction, org.apache.commons.math.optimization.GoalType, double, double, double)">optimize</A></B>(<A HREF="../../../../../../org/apache/commons/math/analysis/UnivariateRealFunction.html" title="interface in org.apache.commons.math.analysis">UnivariateRealFunction</A> f, <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html" title="enum in org.apache.commons.math.optimization">GoalType</A> goalType, double min, double max, double startValue)</CODE> <BR> Find an optimum in the given interval, start at startValue.</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_org.apache.commons.math.optimization.univariate.AbstractUnivariateRealOptimizer"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class org.apache.commons.math.optimization.univariate.<A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html" title="class in org.apache.commons.math.optimization.univariate">AbstractUnivariateRealOptimizer</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#checkResultComputed()">checkResultComputed</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#clearResult()">clearResult</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#computeObjectiveValue(org.apache.commons.math.analysis.UnivariateRealFunction, double)">computeObjectiveValue</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#getEvaluations()">getEvaluations</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#getFunctionValue()">getFunctionValue</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#getMaxEvaluations()">getMaxEvaluations</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#getResult()">getResult</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#setMaxEvaluations(int)">setMaxEvaluations</A>, <A HREF="../../../../../../org/apache/commons/math/optimization/univariate/AbstractUnivariateRealOptimizer.html#setResult(double, double, int)">setResult</A></CODE></TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_org.apache.commons.math.ConvergingAlgorithmImpl"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class org.apache.commons.math.<A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html" title="class in org.apache.commons.math">ConvergingAlgorithmImpl</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#getAbsoluteAccuracy()">getAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#getIterationCount()">getIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#getMaximalIterationCount()">getMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#getRelativeAccuracy()">getRelativeAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#resetAbsoluteAccuracy()">resetAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#resetMaximalIterationCount()">resetMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#resetRelativeAccuracy()">resetRelativeAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#setAbsoluteAccuracy(double)">setAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#setMaximalIterationCount(int)">setMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithmImpl.html#setRelativeAccuracy(double)">setRelativeAccuracy</A></CODE></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#equals(java.lang.Object)" title="class or interface in java.lang">equals</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#hashCode()" title="class or interface in java.lang">hashCode</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#toString()" title="class or interface in java.lang">toString</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> <A NAME="methods_inherited_from_class_org.apache.commons.math.ConvergingAlgorithm"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from interface org.apache.commons.math.<A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html" title="interface in org.apache.commons.math">ConvergingAlgorithm</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#getAbsoluteAccuracy()">getAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#getIterationCount()">getIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#getMaximalIterationCount()">getMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#getRelativeAccuracy()">getRelativeAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#resetAbsoluteAccuracy()">resetAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#resetMaximalIterationCount()">resetMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#resetRelativeAccuracy()">resetRelativeAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#setAbsoluteAccuracy(double)">setAbsoluteAccuracy</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#setMaximalIterationCount(int)">setMaximalIterationCount</A>, <A HREF="../../../../../../org/apache/commons/math/ConvergingAlgorithm.html#setRelativeAccuracy(double)">setRelativeAccuracy</A></CODE></TD> </TR> </TABLE> <P> <!-- ========= 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="BrentOptimizer()"><!-- --></A><H3> BrentOptimizer</H3> <PRE> public <A HREF="../../../../../../src-html/org/apache/commons/math/optimization/univariate/BrentOptimizer.html#line.42"><B>BrentOptimizer</B></A>()</PRE> <DL> <DD>Construct a solver. <P> </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="optimize(org.apache.commons.math.analysis.UnivariateRealFunction, org.apache.commons.math.optimization.GoalType, double, double, double)"><!-- --></A><H3> optimize</H3> <PRE> public double <A HREF="../../../../../../src-html/org/apache/commons/math/optimization/univariate/BrentOptimizer.html#line.47"><B>optimize</B></A>(<A HREF="../../../../../../org/apache/commons/math/analysis/UnivariateRealFunction.html" title="interface in org.apache.commons.math.analysis">UnivariateRealFunction</A> f, <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html" title="enum in org.apache.commons.math.optimization">GoalType</A> goalType, double min, double max, double startValue) throws <A HREF="../../../../../../org/apache/commons/math/MaxIterationsExceededException.html" title="class in org.apache.commons.math">MaxIterationsExceededException</A>, <A HREF="../../../../../../org/apache/commons/math/FunctionEvaluationException.html" title="class in org.apache.commons.math">FunctionEvaluationException</A></PRE> <DL> <DD>Find an optimum in the given interval, start at startValue. <p> An optimizer may require that the interval brackets a single optimum. </p> <P> <DD><DL> <DT><B>Parameters:</B><DD><CODE>f</CODE> - the function to optimize.<DD><CODE>goalType</CODE> - type of optimization goal: either <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html#MAXIMIZE"><CODE>GoalType.MAXIMIZE</CODE></A> or <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html#MINIMIZE"><CODE>GoalType.MINIMIZE</CODE></A><DD><CODE>min</CODE> - the lower bound for the interval.<DD><CODE>max</CODE> - the upper bound for the interval.<DD><CODE>startValue</CODE> - the start value to use <DT><B>Returns:</B><DD>a value where the function is optimum <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../../org/apache/commons/math/FunctionEvaluationException.html" title="class in org.apache.commons.math">FunctionEvaluationException</A></CODE> - if an error occurs evaluating the function <DD><CODE><A HREF="../../../../../../org/apache/commons/math/MaxIterationsExceededException.html" title="class in org.apache.commons.math">MaxIterationsExceededException</A></CODE></DL> </DD> </DL> <HR> <A NAME="optimize(org.apache.commons.math.analysis.UnivariateRealFunction, org.apache.commons.math.optimization.GoalType, double, double)"><!-- --></A><H3> optimize</H3> <PRE> public double <A HREF="../../../../../../src-html/org/apache/commons/math/optimization/univariate/BrentOptimizer.html#line.54"><B>optimize</B></A>(<A HREF="../../../../../../org/apache/commons/math/analysis/UnivariateRealFunction.html" title="interface in org.apache.commons.math.analysis">UnivariateRealFunction</A> f, <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html" title="enum in org.apache.commons.math.optimization">GoalType</A> goalType, double min, double max) throws <A HREF="../../../../../../org/apache/commons/math/MaxIterationsExceededException.html" title="class in org.apache.commons.math">MaxIterationsExceededException</A>, <A HREF="../../../../../../org/apache/commons/math/FunctionEvaluationException.html" title="class in org.apache.commons.math">FunctionEvaluationException</A></PRE> <DL> <DD>Find an optimum in the given interval. <p> An optimizer may require that the interval brackets a single optimum. </p> <P> <DD><DL> <DT><B>Parameters:</B><DD><CODE>f</CODE> - the function to optimize.<DD><CODE>goalType</CODE> - type of optimization goal: either <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html#MAXIMIZE"><CODE>GoalType.MAXIMIZE</CODE></A> or <A HREF="../../../../../../org/apache/commons/math/optimization/GoalType.html#MINIMIZE"><CODE>GoalType.MINIMIZE</CODE></A><DD><CODE>min</CODE> - the lower bound for the interval.<DD><CODE>max</CODE> - the upper bound for the interval. <DT><B>Returns:</B><DD>a value where the function is optimum <DT><B>Throws:</B> <DD><CODE><A HREF="../../../../../../org/apache/commons/math/FunctionEvaluationException.html" title="class in org.apache.commons.math">FunctionEvaluationException</A></CODE> - if an error occurs evaluating the function <DD><CODE><A HREF="../../../../../../org/apache/commons/math/MaxIterationsExceededException.html" title="class in org.apache.commons.math">MaxIterationsExceededException</A></CODE></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 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