Package org.apache.commons.math3.ode

Class FieldODEStateAndDerivative<T extends RealFieldElement<T>>

java.lang.Object
org.apache.commons.math3.ode.FieldODEState<T>
org.apache.commons.math3.ode.FieldODEStateAndDerivative<T>
Type Parameters:
T - the type of the field elements
public class FieldODEStateAndDerivative<T extends RealFieldElement<T>> extends FieldODEState<T>
Container for time, main and secondary state vectors as well as their derivatives.
Since:
3.6
See Also:

  • Constructor Details

    • FieldODEStateAndDerivative

      public FieldODEStateAndDerivative(T time, T[] state, T[] derivative)
      Simple constructor.

      Calling this constructor is equivalent to call FieldODEStateAndDerivative(time, state, derivative, null, null).

      Parameters:
      time - time
      state - state at time
      derivative - derivative of the state at time

    • FieldODEStateAndDerivative

      public FieldODEStateAndDerivative(T time, T[] state, T[] derivative, T[][] secondaryState, T[][] secondaryDerivative)
      Simple constructor.
      Parameters:
      time - time
      state - state at time
      derivative - derivative of the state at time
      secondaryState - state at time (may be null)
      secondaryDerivative - derivative of the state at time (may be null)

  • Method Details

    • getDerivative

      public T[] getDerivative()
      Get derivative of the main state at time.
      Returns:
      derivative of the main state at time

    • getSecondaryDerivative

      public T[] getSecondaryDerivative(int index)
      Get derivative of the secondary state at time.
      Parameters:
      index - index of the secondary set as returned by FieldExpandableODE.addSecondaryEquations(FieldSecondaryEquations) (beware index 0 corresponds to main state, additional states start at 1)
      Returns:
      derivative of the secondary state at time