PETSc version 3.15.5
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 | 
See Also
 MatNullSpaceCreate(), MatNullSpaceDestroy(), MatNullSpaceSetFunction()
Level
advanced
Location
src/mat/interface/matnull.c
Examples
src/ts/tutorials/ex50.c.html
src/tao/unconstrained/tutorials/spectraladjointassimilation.c.html
Index of all Mat routines
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