This interface should be implemented by all real first order
differential equation problems before they can be handled by the
integrators FirstOrderIntegrator#integrate method.
A first order differential equations problem, as seen by an
integrator is the time derivative dY/dt of a state
vector Y, both being one dimensional arrays. From the
integrator point of view, this derivative depends only on the
current time t and on the state vector
Y.
For real problems, the derivative depends also on parameters that do not belong to the state vector (dynamical model constants for example). These constants are completely outside of the scope of this interface, the classes that implement it are allowed to handle them as they want.
FirstOrderIntegrator, FirstOrderConverter, SecondOrderDifferentialEquations
| Modifier and Type | Method and Description |
|---|---|
| public void | computeDerivatives(double
current value of the independent time variable t, double[] array containing the current value of the state vector y, double[] placeholder array where to put the time derivative of the state vector yDot)Get the current time derivative of the state vector. |
| public int |
| computeDerivatives | back to summary |
|---|---|
| public void computeDerivatives(double t, double[] y, double[] yDot) throws MaxCountExceededException, DimensionMismatchException Get the current time derivative of the state vector.
| |
| getDimension | back to summary |
|---|---|
| public int getDimension() Get the dimension of the problem.
| |