SNESSetFunction#
Sets the function evaluation routine and function vector for use by the SNES routines in solving systems of nonlinear equations.
Synopsis#
#include "petscsnes.h"  
PetscErrorCode SNESSetFunction(SNES snes, Vec r, SNESFunctionFn *f, void *ctx)
Logically Collective
Input Parameters#
- snes - the - SNEScontext
- r - vector to store function values, may be - NULL
- f - function evaluation routine; for calling sequence see - SNESFunctionFn
- ctx - [optional] user-defined context for private data for the function evaluation routine (may be - NULL)
See Also#
SNES: Nonlinear Solvers, SNES, SNESGetFunction(), SNESComputeFunction(), SNESSetJacobian(), SNESSetPicard(), SNESFunctionFn
Level#
beginner
Location#
Examples#
src/snes/tutorials/ex28.c
src/snes/tutorials/ex21.c
src/snes/tutorials/ex15.c
src/snes/tutorials/ex3.c
src/snes/tutorials/ex1f.F90
src/snes/tutorials/ex18.c
src/snes/tutorials/ex1.c
src/snes/tutorials/ex14.c
src/snes/tutorials/ex2.c
src/snes/tutorials/ex22.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages