Interface SecondaryEquations
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public interface SecondaryEquations
This interface allows users to add secondary differential equations to a primary set of differential equations.In some cases users may need to integrate some problem-specific equations along with a primary set of differential equations. One example is optimal control where adjoined parameters linked to the minimized hamiltonian must be integrated.
This interface allows users to add such equations to a primary set of
first order differential equationsthanks to theExpandableStatefulODE.addSecondaryEquations(SecondaryEquations)method.- Since:
- 3.0
- See Also:
ExpandableStatefulODE
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidcomputeDerivatives(double t, double[] primary, double[] primaryDot, double[] secondary, double[] secondaryDot)Compute the derivatives related to the secondary state parameters.intgetDimension()Get the dimension of the secondary state parameters.
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Method Detail
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getDimension
int getDimension()
Get the dimension of the secondary state parameters.- Returns:
- dimension of the secondary state parameters
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computeDerivatives
void computeDerivatives(double t, double[] primary, double[] primaryDot, double[] secondary, double[] secondaryDot) throws MaxCountExceededException, DimensionMismatchException
Compute the derivatives related to the secondary state parameters.- Parameters:
t- current value of the independent time variableprimary- array containing the current value of the primary state vectorprimaryDot- array containing the derivative of the primary state vectorsecondary- array containing the current value of the secondary state vectorsecondaryDot- placeholder array where to put the derivative of the secondary state vector- Throws:
MaxCountExceededException- if the number of functions evaluations is exceededDimensionMismatchException- if arrays dimensions do not match equations settings
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