petsc-3.4.2 2013-07-02

# MatNullSpaceSetFunction

set a function that removes a null space from a vector out of null spaces.

### Synopsis

    #include "petscmat.h"
    PetscErrorCode  MatNullSpaceSetFunction(MatNullSpace sp, PetscErrorCode (*rem)(MatNullSpace,Vec,void*),void *ctx)

Logically Collective on MatNullSpace

### Input Parameters

| sp | - the null space object
| rem | - the function that removes the null space
| ctx | - context for the remove function

### Keywords

PC, null space, create

### See Also

MatNullSpaceDestroy(), MatNullSpaceRemove(), KSPSetNullSpace(), MatNullSpace, MatNullSpaceCreate()

Level:advanced
Location: src/mat/interface/matnull.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages