:orphan:
# MatGetNearNullSpace
Get null space attached with `MatSetNearNullSpace()`
## Synopsis
```
#include "petscmat.h"
PetscErrorCode MatGetNearNullSpace(Mat mat, MatNullSpace *nullsp)
```
Not Collective
## Input Parameter
- ***mat -*** the matrix
## Output Parameter
- ***nullsp -*** the null space object, `NULL` if not set
## See Also
[](ch_matrices), `Mat`, `MatNullSpace`, `MatSetNearNullSpace()`, `MatGetNullSpace()`, `MatNullSpaceCreate()`
## Level
advanced
## Location
src/mat/interface/matrix.c
## Examples
src/ksp/ksp/tutorials/ex49.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/interface/matrix.c)
[Index of all Mat routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)