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<div class="subTitle">org.apache.commons.math3.analysis.solvers</div>
<h2 title="Interface BaseUnivariateSolver" class="title">Interface BaseUnivariateSolver<FUNC extends <a href="../../../../../../org/apache/commons/math3/analysis/UnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">UnivariateFunction</a>></h2>
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<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>FUNC</code> - Type of function to solve.</dd></dl>
<dl>
<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BracketedUnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers">BracketedUnivariateSolver</a><FUNC>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/DifferentiableUnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers">DifferentiableUnivariateSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/PolynomialSolver.html" title="interface in org.apache.commons.math3.analysis.solvers">PolynomialSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/UnivariateDifferentiableSolver.html" title="interface in org.apache.commons.math3.analysis.solvers">UnivariateDifferentiableSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/UnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers">UnivariateSolver</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../../org/apache/commons/math3/analysis/solvers/AbstractDifferentiableUnivariateSolver.html" title="class in org.apache.commons.math3.analysis.solvers">AbstractDifferentiableUnivariateSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/AbstractPolynomialSolver.html" title="class in org.apache.commons.math3.analysis.solvers">AbstractPolynomialSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/AbstractUnivariateDifferentiableSolver.html" title="class in org.apache.commons.math3.analysis.solvers">AbstractUnivariateDifferentiableSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/AbstractUnivariateSolver.html" title="class in org.apache.commons.math3.analysis.solvers">AbstractUnivariateSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseAbstractUnivariateSolver.html" title="class in org.apache.commons.math3.analysis.solvers">BaseAbstractUnivariateSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseSecantSolver.html" title="class in org.apache.commons.math3.analysis.solvers">BaseSecantSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/BisectionSolver.html" title="class in org.apache.commons.math3.analysis.solvers">BisectionSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/BracketingNthOrderBrentSolver.html" title="class in org.apache.commons.math3.analysis.solvers">BracketingNthOrderBrentSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/BrentSolver.html" title="class in org.apache.commons.math3.analysis.solvers">BrentSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/IllinoisSolver.html" title="class in org.apache.commons.math3.analysis.solvers">IllinoisSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/LaguerreSolver.html" title="class in org.apache.commons.math3.analysis.solvers">LaguerreSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/MullerSolver.html" title="class in org.apache.commons.math3.analysis.solvers">MullerSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/MullerSolver2.html" title="class in org.apache.commons.math3.analysis.solvers">MullerSolver2</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/NewtonRaphsonSolver.html" title="class in org.apache.commons.math3.analysis.solvers">NewtonRaphsonSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/NewtonSolver.html" title="class in org.apache.commons.math3.analysis.solvers">NewtonSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/PegasusSolver.html" title="class in org.apache.commons.math3.analysis.solvers">PegasusSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/RegulaFalsiSolver.html" title="class in org.apache.commons.math3.analysis.solvers">RegulaFalsiSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/RiddersSolver.html" title="class in org.apache.commons.math3.analysis.solvers">RiddersSolver</a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/SecantSolver.html" title="class in org.apache.commons.math3.analysis.solvers">SecantSolver</a></dd>
</dl>
<hr>
<br>
<pre>public interface <span class="strong">BaseUnivariateSolver<FUNC extends <a href="../../../../../../org/apache/commons/math3/analysis/UnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">UnivariateFunction</a>></span></pre>
<div class="block">Interface for (univariate real) rootfinding algorithms.
Implementations will search for only one zero in the given interval.
This class is not intended for use outside of the Apache Commons Math
library, regular user should rely on more specific interfaces like
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/UnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers"><code>UnivariateSolver</code></a>, <a href="../../../../../../org/apache/commons/math3/analysis/solvers/PolynomialSolver.html" title="interface in org.apache.commons.math3.analysis.solvers"><code>PolynomialSolver</code></a> or <a href="../../../../../../org/apache/commons/math3/analysis/solvers/DifferentiableUnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers"><code>DifferentiableUnivariateSolver</code></a>.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>3.0</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../org/apache/commons/math3/analysis/solvers/UnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers"><code>UnivariateSolver</code></a>,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/PolynomialSolver.html" title="interface in org.apache.commons.math3.analysis.solvers"><code>PolynomialSolver</code></a>,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/DifferentiableUnivariateSolver.html" title="interface in org.apache.commons.math3.analysis.solvers"><code>DifferentiableUnivariateSolver</code></a></dd></dl>
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#getAbsoluteAccuracy()">getAbsoluteAccuracy</a></strong>()</code>
<div class="block">Get the absolute accuracy of the solver.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#getEvaluations()">getEvaluations</a></strong>()</code>
<div class="block">Get the number of evaluations of the objective function.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#getFunctionValueAccuracy()">getFunctionValueAccuracy</a></strong>()</code>
<div class="block">Get the function value accuracy of the solver.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#getMaxEvaluations()">getMaxEvaluations</a></strong>()</code>
<div class="block">Get the maximum number of function evaluations.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#getRelativeAccuracy()">getRelativeAccuracy</a></strong>()</code>
<div class="block">Get the relative accuracy of the solver.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#solve(int,%20FUNC,%20double)">solve</a></strong>(int maxEval,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html" title="type parameter in BaseUnivariateSolver">FUNC</a> f,
double startValue)</code>
<div class="block">Solve for a zero in the vicinity of <code>startValue</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#solve(int,%20FUNC,%20double,%20double)">solve</a></strong>(int maxEval,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html" title="type parameter in BaseUnivariateSolver">FUNC</a> f,
double min,
double max)</code>
<div class="block">Solve for a zero root in the given interval.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#solve(int,%20FUNC,%20double,%20double,%20double)">solve</a></strong>(int maxEval,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html" title="type parameter in BaseUnivariateSolver">FUNC</a> f,
double min,
double max,
double startValue)</code>
<div class="block">Solve for a zero in the given interval, start at <code>startValue</code>.</div>
</td>
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</table>
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<h3>Method Detail</h3>
<a name="getMaxEvaluations()">
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<h4>getMaxEvaluations</h4>
<pre>int getMaxEvaluations()</pre>
<div class="block">Get the maximum number of function evaluations.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the maximum number of function evaluations.</dd></dl>
</li>
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<a name="getEvaluations()">
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<h4>getEvaluations</h4>
<pre>int getEvaluations()</pre>
<div class="block">Get the number of evaluations of the objective function.
The number of evaluations corresponds to the last call to the
<code>optimize</code> method. It is 0 if the method has not been
called yet.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of evaluations of the objective function.</dd></dl>
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<a name="getAbsoluteAccuracy()">
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<h4>getAbsoluteAccuracy</h4>
<pre>double getAbsoluteAccuracy()</pre>
<div class="block">Get the absolute accuracy of the solver. Solutions returned by the
solver should be accurate to this tolerance, i.e., if ε is the
absolute accuracy of the solver and <code>v</code> is a value returned by
one of the <code>solve</code> methods, then a root of the function should
exist somewhere in the interval (<code>v</code> - ε, <code>v</code> + ε).</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the absolute accuracy.</dd></dl>
</li>
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<a name="getRelativeAccuracy()">
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<h4>getRelativeAccuracy</h4>
<pre>double getRelativeAccuracy()</pre>
<div class="block">Get the relative accuracy of the solver. The contract for relative
accuracy is the same as <a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html#getAbsoluteAccuracy()"><code>getAbsoluteAccuracy()</code></a>, but using
relative, rather than absolute error. If ρ is the relative accuracy
configured for a solver and <code>v</code> is a value returned, then a root
of the function should exist somewhere in the interval
(<code>v</code> - ρ <code>v</code>, <code>v</code> + ρ <code>v</code>).</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the relative accuracy.</dd></dl>
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<a name="getFunctionValueAccuracy()">
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<h4>getFunctionValueAccuracy</h4>
<pre>double getFunctionValueAccuracy()</pre>
<div class="block">Get the function value accuracy of the solver. If <code>v</code> is
a value returned by the solver for a function <code>f</code>,
then by contract, <code>|f(v)|</code> should be less than or equal to
the function value accuracy configured for the solver.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the function value accuracy.</dd></dl>
</li>
</ul>
<a name="solve(int,org.apache.commons.math3.analysis.UnivariateFunction,double,double)">
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<h4>solve</h4>
<pre>double solve(int maxEval,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html" title="type parameter in BaseUnivariateSolver">FUNC</a> f,
double min,
double max)
throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a>,
<a href="../../../../../../org/apache/commons/math3/exception/TooManyEvaluationsException.html" title="class in org.apache.commons.math3.exception">TooManyEvaluationsException</a></pre>
<div class="block">Solve for a zero root in the given interval.
A solver may require that the interval brackets a single zero root.
Solvers that do require bracketing should be able to handle the case
where one of the endpoints is itself a root.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>maxEval</code> - Maximum number of evaluations.</dd><dd><code>f</code> - Function to solve.</dd><dd><code>min</code> - Lower bound for the interval.</dd><dd><code>max</code> - Upper bound for the interval.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a value where the function is zero.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the arguments do not satisfy the requirements specified by the solver.</dd>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/TooManyEvaluationsException.html" title="class in org.apache.commons.math3.exception">TooManyEvaluationsException</a></code> - if
the allowed number of evaluations is exceeded.</dd></dl>
</li>
</ul>
<a name="solve(int,org.apache.commons.math3.analysis.UnivariateFunction,double,double,double)">
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<h4>solve</h4>
<pre>double solve(int maxEval,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html" title="type parameter in BaseUnivariateSolver">FUNC</a> f,
double min,
double max,
double startValue)
throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a>,
<a href="../../../../../../org/apache/commons/math3/exception/TooManyEvaluationsException.html" title="class in org.apache.commons.math3.exception">TooManyEvaluationsException</a></pre>
<div class="block">Solve for a zero in the given interval, start at <code>startValue</code>.
A solver may require that the interval brackets a single zero root.
Solvers that do require bracketing should be able to handle the case
where one of the endpoints is itself a root.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>maxEval</code> - Maximum number of evaluations.</dd><dd><code>f</code> - Function to solve.</dd><dd><code>min</code> - Lower bound for the interval.</dd><dd><code>max</code> - Upper bound for the interval.</dd><dd><code>startValue</code> - Start value to use.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a value where the function is zero.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the arguments do not satisfy the requirements specified by the solver.</dd>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/TooManyEvaluationsException.html" title="class in org.apache.commons.math3.exception">TooManyEvaluationsException</a></code> - if
the allowed number of evaluations is exceeded.</dd></dl>
</li>
</ul>
<a name="solve(int,org.apache.commons.math3.analysis.UnivariateFunction,double)">
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<h4>solve</h4>
<pre>double solve(int maxEval,
<a href="../../../../../../org/apache/commons/math3/analysis/solvers/BaseUnivariateSolver.html" title="type parameter in BaseUnivariateSolver">FUNC</a> f,
double startValue)</pre>
<div class="block">Solve for a zero in the vicinity of <code>startValue</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - Function to solve.</dd><dd><code>startValue</code> - Start value to use.</dd><dd><code>maxEval</code> - Maximum number of evaluations.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a value where the function is zero.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the arguments do not satisfy the requirements specified by the solver.</dd>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/TooManyEvaluationsException.html" title="class in org.apache.commons.math3.exception">TooManyEvaluationsException</a></code> - if
the allowed number of evaluations is exceeded.</dd></dl>
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