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<h2 title="Interface SecondOrderIntegrator" class="title">Interface SecondOrderIntegrator</h2>
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<pre>public interface <span class="strong">SecondOrderIntegrator</span>
extends <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html" title="interface in org.apache.commons.math3.ode">ODEIntegrator</a></pre>
<div class="block">This interface represents a second order integrator for
differential equations.
<p>The classes which are devoted to solve second order differential
equations should implement this interface. The problems which can
be handled should implement the <a href="../../../../../org/apache/commons/math3/ode/SecondOrderDifferentialEquations.html" title="interface in org.apache.commons.math3.ode"><code>SecondOrderDifferentialEquations</code></a> interface.</p></div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.2</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/commons/math3/ode/SecondOrderDifferentialEquations.html" title="interface in org.apache.commons.math3.ode"><code>SecondOrderDifferentialEquations</code></a></dd></dl>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/ode/SecondOrderIntegrator.html#integrate(org.apache.commons.math3.ode.SecondOrderDifferentialEquations,%20double,%20double[],%20double[],%20double,%20double[],%20double[])">integrate</a></strong>(<a href="../../../../../org/apache/commons/math3/ode/SecondOrderDifferentialEquations.html" title="interface in org.apache.commons.math3.ode">SecondOrderDifferentialEquations</a> equations,
double t0,
double[] y0,
double[] yDot0,
double t,
double[] y,
double[] yDot)</code>
<div class="block">Integrate the differential equations up to the given time</div>
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<h3>Methods inherited from interface org.apache.commons.math3.ode.<a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html" title="interface in org.apache.commons.math3.ode">ODEIntegrator</a></h3>
<code><a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#addEventHandler(org.apache.commons.math3.ode.events.EventHandler,%20double,%20double,%20int)">addEventHandler</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#addEventHandler(org.apache.commons.math3.ode.events.EventHandler,%20double,%20double,%20int,%20org.apache.commons.math3.analysis.solvers.UnivariateSolver)">addEventHandler</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#addStepHandler(org.apache.commons.math3.ode.sampling.StepHandler)">addStepHandler</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#clearEventHandlers()">clearEventHandlers</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#clearStepHandlers()">clearStepHandlers</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getCurrentSignedStepsize()">getCurrentSignedStepsize</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getCurrentStepStart()">getCurrentStepStart</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getEvaluations()">getEvaluations</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getEventHandlers()">getEventHandlers</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getMaxEvaluations()">getMaxEvaluations</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getName()">getName</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#getStepHandlers()">getStepHandlers</a>, <a href="../../../../../org/apache/commons/math3/ode/ODEIntegrator.html#setMaxEvaluations(int)">setMaxEvaluations</a></code></li>
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<h4>integrate</h4>
<pre>void integrate(<a href="../../../../../org/apache/commons/math3/ode/SecondOrderDifferentialEquations.html" title="interface in org.apache.commons.math3.ode">SecondOrderDifferentialEquations</a> equations,
double t0,
double[] y0,
double[] yDot0,
double t,
double[] y,
double[] yDot)
throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a>,
<a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
<div class="block">Integrate the differential equations up to the given time</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>equations</code> - differential equations to integrate</dd><dd><code>t0</code> - initial time</dd><dd><code>y0</code> - initial value of the state vector at t0</dd><dd><code>yDot0</code> - initial value of the first derivative of the state
vector at t0</dd><dd><code>t</code> - target time for the integration
(can be set to a value smaller thant <code>t0</code> for backward integration)</dd><dd><code>y</code> - placeholder where to put the state vector at each
successful step (and hence at the end of integration), can be the
same object as y0</dd><dd><code>yDot</code> - placeholder where to put the first derivative of
the state vector at time t, can be the same object as yDot0</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></code> - if the integrator cannot perform integration</dd>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if integration parameters are wrong (typically
too small integration span)</dd></dl>
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