:orphan:
# MatGetRowUpperTriangular
Sets a flag to enable calls to `MatGetRow()` for matrix in `MATSBAIJ` format. You should call `MatRestoreRowUpperTriangular()` after calling` MatGetRow()` and `MatRestoreRow()` to disable the flag.
## Synopsis
```
#include "petscmat.h"
PetscErrorCode MatGetRowUpperTriangular(Mat mat)
```
Not Collective
## Input Parameter
- ***mat -*** the matrix
## Note
The flag is to ensure that users are aware that `MatGetRow()` only provides the upper triangular part of the row for the matrices in `MATSBAIJ` format.
## See Also
[](ch_matrices), `Mat`, `MATSBAIJ`, `MatRestoreRowUpperTriangular()`
## Level
advanced
## Location
src/mat/interface/matrix.c
## Implementations
MatGetRowUpperTriangular_MPISBAIJ in src/mat/impls/sbaij/mpi/mpisbaij.c
MatGetRowUpperTriangular_SeqSBAIJ in src/mat/impls/sbaij/seq/sbaij.c
---
[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)