petsc-3.5.1 2014-08-06
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SNESTSFormJacobian

Function to evaluate the Jacobian

Synopsis

#include "petscts.h"  
PetscErrorCode  SNESTSFormJacobian(SNES snes,Vec U,Mat A,Mat B,void *ctx)
Collective on SNES

Input Parameter

snes - nonlinear solver
U - the current state at which to evaluate the residual
ctx - user context, must be a TS

Output Parameter

A - the Jacobian
B - the preconditioning matrix (may be the same as A)
flag - indicates any structure change in the matrix

Notes

This function is not normally called by users and is automatically registered with the SNES used by TS.

See Also

SNESSetJacobian()

Level:developer
Location:
src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages