SNESJacobianFunction#
Functional form used by SNES to compute the nonlinear Jacobian of the function to be solved by SNES
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESJacobianFunction(SNES snes,Vec x,Mat Amat,Mat Pmat,void *ctx);
Collective
Input Parameters#
x - input vector, the Jacobian is to be computed at this value
ctx - [optional] user-defined Jacobian context
Output Parameters#
Amat - the matrix that defines the (approximate) Jacobian
Pmat - the matrix to be used in constructing the preconditioner, usually the same as
Amat.
See Also#
SNES: Nonlinear Solvers, SNES, SNESSetFunction(), SNESGetFunction(), SNESSetJacobian(), SNESGetJacobian()
Level#
intermediate
Location#
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages