# MatGetTransposeNullSpace
retrieves the null space of the transpose of a matrix. 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatGetTransposeNullSpace(Mat mat, MatNullSpace *nullsp)
```
Logically Collective


## Input Parameters

- ***mat -*** the matrix
- ***nullsp -*** the null space object





## See Also
 `MatNullSpace`, `MatCreate()`, `MatNullSpaceCreate()`, `MatSetNearNullSpace()`, `MatSetTransposeNullSpace()`, `MatSetNullSpace()`, `MatGetNullSpace()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/interface/matrix.c.html#MatGetTransposeNullSpace">src/mat/interface/matrix.c</A>


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[Index of all Mat routines](index.md)  
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