SNESComputeFunction#

Calls the function that has been set with SNESSetFunction().

Synopsis#

#include "petscsnes.h"  
PetscErrorCode SNESComputeFunction(SNES snes, Vec x, Vec y)

Collective

Input Parameters#

  • snes - the SNES context

  • x - input vector

Output Parameter#

Notes#

SNESComputeFunction() is typically used within nonlinear solvers implementations, so users would not generally call this routine themselves.

When solving for \(F(x) = b\), this routine computes \(y = F(x) - b\).

See Also#

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

Level#

developer

Location#

src/snes/interface/snes.c

Examples#

src/snes/tutorials/ex77.c
src/snes/tutorials/ex63.c
src/snes/tutorials/ex12.c

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