petsc-3.6.2 2015-10-02
   
MatNullSpaceTest
Tests if the claimed null space is really a null space of a matrix 
Synopsis
#include "petscmat.h" 
PetscErrorCode  MatNullSpaceTest(MatNullSpace sp,Mat mat,PetscBool  *isNull)
Collective on MatNullSpace
Input Parameters
|  | sp | - the null space context | 
|  | mat | - the matrix | 
Output Parameters
isNull  -PETSC_TRUE if the nullspace is valid for this matrix
Keywords
 PC, null space, remove
See Also
 MatNullSpaceCreate(), MatNullSpaceDestroy(), MatNullSpaceSetFunction()
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
Examples
src/snes/examples/tutorials/ex62.c.html