#include "petscts.h" PetscErrorCode TSComputeIFunction(TS ts,PetscReal t,Vec U,Vec Udot,Vec Y,PetscBool imex)Collective on TS
| ts | - the TS context | |
| t | - current time | |
| U | - state vector | |
| Udot | - time derivative of state vector | |
| imex | - flag indicates if the method is IMEX so that the RHSFunction should be kept separate |
| Y | - right hand side |
If the user did did not write their equations in implicit form, this function recasts them in implicit form.