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package org.apache.commons.math3.ode;

import org.apache.commons.math3.exception.DimensionMismatchException;
import org.apache.commons.math3.exception.MaxCountExceededException;

Interface expanding first order differential equations in order to compute exactly the main state jacobian matrix for partial derivatives equations.
Since:3.0
/** Interface expanding {@link FirstOrderDifferentialEquations first order * differential equations} in order to compute exactly the main state jacobian * matrix for {@link JacobianMatrices partial derivatives equations}. * * @since 3.0 */
public interface MainStateJacobianProvider extends FirstOrderDifferentialEquations {
Compute the jacobian matrix of ODE with respect to main state.
Params:
  • t – current value of the independent time variable
  • y – array containing the current value of the main state vector
  • yDot – array containing the current value of the time derivative of the main state vector
  • dFdY – placeholder array where to put the jacobian matrix of the ODE w.r.t. the main state vector
Throws:
/** Compute the jacobian matrix of ODE with respect to main state. * @param t current value of the independent <I>time</I> variable * @param y array containing the current value of the main state vector * @param yDot array containing the current value of the time derivative of the main state vector * @param dFdY placeholder array where to put the jacobian matrix of the ODE w.r.t. the main state vector * @exception MaxCountExceededException if the number of functions evaluations is exceeded * @exception DimensionMismatchException if arrays dimensions do not match equations settings */
void computeMainStateJacobian(double t, double[] y, double[] yDot, double[][] dFdY) throws MaxCountExceededException, DimensionMismatchException; }