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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.math.ode;
import org.apache.commons.math.ode.DerivativeException;
/** 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 {@link
* SecondOrderDifferentialEquations} interface.</p>
*
* @see SecondOrderDifferentialEquations
* @version $Revision: 1073158 $ $Date: 2011-02-21 22:46:52 +0100 (lun. 21 févr. 2011) $
* @since 1.2
*/
public interface SecondOrderIntegrator extends ODEIntegrator {
/** Integrate the differential equations up to the given time
* @param equations differential equations to integrate
* @param t0 initial time
* @param y0 initial value of the state vector at t0
* @param yDot0 initial value of the first derivative of the state
* vector at t0
* @param t target time for the integration
* (can be set to a value smaller thant <code>t0</code> for backward integration)
* @param y 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
* @param yDot placeholder where to put the first derivative of
* the state vector at time t, can be the same object as yDot0
* @throws IntegratorException if the integrator cannot perform integration
* @throws DerivativeException this exception is propagated to the caller if the
* underlying user function triggers one
*/
void integrate(SecondOrderDifferentialEquations equations,
double t0, double[] y0, double[] yDot0,
double t, double[] y, double[] yDot)
throws DerivativeException, IntegratorException;
}
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