#include "petscts.h" PetscErrorCode SNESTSFormJacobian(SNES snes,Vec U,Mat A,Mat B,void *ctx)Collective on SNES
| snes | - nonlinear solver | |
| U | - the current state at which to evaluate the residual | |
| ctx | - user context, must be a TS |
| A | - the Jacobian | |
| B | - the preconditioning matrix (may be the same as A) | |
| flag | - indicates any structure change in the matrix |