:orphan:
# MatSeqAIJGetArrayRead
gives read-only access to the array where the data for a `MATSEQAIJ` matrix is stored 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatSeqAIJGetArrayRead(Mat A, const PetscScalar **array)
```
Not Collective; No Fortran Support


## Input Parameter

- ***mat -*** a `MATSEQAIJ` matrix



## Output Parameter

- ***array -*** pointer to the data





## See Also
 [](ch_matrices), `Mat`, `MatSeqAIJGetArray()`, `MatSeqAIJRestoreArrayRead()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/seq/aij.c.html#MatSeqAIJGetArrayRead">src/mat/impls/aij/seq/aij.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/seq/kokkos/aijkok.kokkos.cxx.html#MatSeqAIJGetArrayRead_SeqAIJKokkos">MatSeqAIJGetArrayRead_SeqAIJKokkos in src/mat/impls/aij/seq/kokkos/aijkok.kokkos.cxx</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu.html#MatSeqAIJGetArrayRead_SeqAIJCUSPARSE">MatSeqAIJGetArrayRead_SeqAIJCUSPARSE in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c.html#MatSeqAIJGetArrayRead_SeqAIJHIPSPARSE">MatSeqAIJGetArrayRead_SeqAIJHIPSPARSE in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/aij/seq/seqviennacl/aijviennacl.cxx.html#MatSeqAIJGetArrayRead_SeqAIJViennaCL">MatSeqAIJGetArrayRead_SeqAIJViennaCL in src/mat/impls/aij/seq/seqviennacl/aijviennacl.cxx</A><BR>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/impls/aij/seq/aij.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)