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# MatRestoreRowUpperTriangular
Disable calls to `MatGetRow()` for matrix in `MATSBAIJ` format.
## Synopsis
```
#include "petscmat.h"
PetscErrorCode MatRestoreRowUpperTriangular(Mat mat)
```
Not Collective
## Input Parameter
- ***mat -*** the matrix
## Note
This routine should be called after you have finished calls to `MatGetRow()` and `MatRestoreRow()`.
## See Also
[](ch_matrices), `Mat`, `MATSBAIJ`, `MatGetRowUpperTriangular()`
## Level
advanced
## Location
src/mat/interface/matrix.c
## Implementations
MatRestoreRowUpperTriangular_MPISBAIJ in src/mat/impls/sbaij/mpi/mpisbaij.c
MatRestoreRowUpperTriangular_SeqSBAIJ in src/mat/impls/sbaij/seq/sbaij.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/interface/matrix.c)
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