Returns the Jacobian J at the present timestep.
PetscErrorCode TSGetRHSJacobian(TS ts,Mat *Amat,Mat *Pmat,TSRHSJacobian *func,void **ctx)
Not Collective, but parallel objects are returned if TS is parallel
ts -The TS context obtained from TSCreate()
|Amat ||- The (approximate) Jacobian J of G, where U_t = G(U,t) (or NULL)
|Pmat ||- The matrix from which the preconditioner is constructed, usually the same as Amat (or NULL)
|func ||- Function to compute the Jacobian of the RHS (or NULL)
|ctx ||- User-defined context for Jacobian evaluation routine (or NULL)
You can pass in NULL for any return argument you do not need.
TSGetTimeStep(), TSGetMatrices(), TSGetTime(), TSGetStepNumber()
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages