SNESTestFunction#

Computes the difference between the computed and finite-difference functions

Synopsis#

#include "petscsnes.h"  
PetscErrorCode SNESTestFunction(SNES snes)

Collective

Input Parameter#

snes - the SNES context

Options Database Keys#

-snes_test_function - compare the user provided function with one compute via finite differences to check for errors.
-snes_test_function_view - display the user provided function, the finite difference function and the difference

See Also#

SNES: Nonlinear Solvers, SNESTestJacobian(), SNESSetFunction(), SNESComputeFunction()

Level#

developer

Location#

src/snes/interface/snes.c

Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages