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# MatDestroySeqNonzeroStructure
Destroys matrix obtained with `MatGetSeqNonzeroStructure()`. 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatDestroySeqNonzeroStructure(Mat *mat)
```
Collective


## Input Parameter

- ***mat -*** the matrix (this is a pointer to the array of matrices, just to match the calling
sequence of `MatGetSeqNonzeroStructure()`)





## Note
Frees not only the matrices, but also the array that contains the matrices


## See Also
 [](ch_matrices), `Mat`, `MatGetSeqNonzeroStructure()`

## Level
advanced

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


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/interface/matrix.c)


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