SNESFunction#

Functional form used to convey the nonlinear function to SNES in SNESSetFunction()

Synopsis#

#include "petscsnes.h"
PetscErrorCode SNESFunction(SNES snes,Vec x,Vec f,void *ctx);

Collective

Input Parameters#

  • snes - the SNES context

  • x - state at which to evaluate residual

  • ctx - optional user-defined function context, passed in with SNESSetFunction()

Output Parameter#

  • f - vector to put residual (function value)

See Also#

SNES: Nonlinear Solvers, SNESSetFunction(), SNESGetFunction()

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