#include "petscts.h" PetscErrorCode TSGetIJacobian(TS ts,Mat *Amat,Mat *Pmat,TSIJacobian *f,void **ctx)Not Collective, but parallel objects are returned if TS is parallel
|Amat||- The (approximate) Jacobian of F(t,U,U_t)|
|Pmat||- The matrix from which the preconditioner is constructed, often the same as Amat|
|f||- The function to compute the matrices|
|ctx||- User-defined context for Jacobian evaluation routine|
Notes: You can pass in NULL for any return argument you do not need.