# MatDenseGetArrayWrite
gives write-only access to the array where the data for a `MATDENSE` matrix is stored 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatDenseGetArrayWrite(Mat A, PetscScalar **array)
```
Not Collective


## Input Parameter

- ***mat -*** a dense matrix



## Output Parameter

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





## See Also
 `MATDENSE`, `MatDenseRestoreArrayWrite()`, `MatDenseGetArray()`, `MatDenseRestoreArray()`, `MatDenseGetArrayRead()`, `MatDenseRestoreArrayRead()`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/tutorials/ex77.c.html">src/ksp/ksp/tutorials/ex77.c.html</A><BR>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/dense/mpi/mpidense.c.html#MatDenseGetArrayWrite_MPIDense">MatDenseGetArrayWrite_MPIDense in src/mat/impls/dense/mpi/mpidense.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/dense/seq/cuda/densecuda.cu.html#MatDenseGetArrayWrite_SeqDenseCUDA">MatDenseGetArrayWrite_SeqDenseCUDA in src/mat/impls/dense/seq/cuda/densecuda.cu</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/dense/seq/hip/densehip.hip.c.html#MatDenseGetArrayWrite_SeqDenseHIP">MatDenseGetArrayWrite_SeqDenseHIP in src/mat/impls/dense/seq/hip/densehip.hip.c</A><BR>


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


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