PETSc version 3.15.5
SNESJacobianFunction
Function used to convey 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 on snes
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
   SNESSetFunction(), SNESGetFunction(), SNESSetJacobian(), SNESGetJacobian()
Level
intermediate
Location
src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages