#include "petscts.h" PetscErrorCode TSSetI2Function(TS ts,Vec F,TSI2Function fun,void *ctx)Logically Collective on TS
ts | - the TS context obtained from TSCreate() | |
F | - vector to hold the residual (or NULL to have it created internally) | |
fun | - the function evaluation routine | |
ctx | - user-defined context for private data for the function evaluation routine (may be NULL) |
PetscErrorCode fun(TS ts,PetscReal t,Vec U,Vec U_t,Vec U_tt,Vec F,ctx);
t | - time at step/stage being solved | |
U | - state vector | |
U_t | - time derivative of state vector | |
U_tt | - second time derivative of state vector | |
F | - function vector | |
ctx | - [optional] user-defined context for matrix evaluation routine (may be NULL) |