petsc-3.9.4 2018-09-11
MatResidual
Default routine to calculate the residual.
Synopsis
#include "petscmat.h"
PetscErrorCode MatResidual(Mat mat,Vec b,Vec x,Vec r)
Collective on Mat and Vec
Input Parameters
| mat | - the matrix
|
| b | - the right-hand-side
|
| x | - the approximate solution
|
Output Parameter
r -location to store the residual
Keywords
MG, default, multigrid, residual
See Also
PCMGSetResidual()
Level
developer
Location
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages