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# MatHermitianTranspose
Computes an in-place or out-of-place Hermitian transpose of a matrix in complex conjugate. 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatHermitianTranspose(Mat mat, MatReuse reuse, Mat *B)
```
Collective


## Input Parameters

- ***mat -*** the matrix to transpose and complex conjugate
- ***reuse -*** either `MAT_INITIAL_MATRIX`, `MAT_REUSE_MATRIX`, or `MAT_INPLACE_MATRIX`



## Output Parameter

- ***B -*** the Hermitian transpose





## See Also
 [](ch_matrices), `Mat`, `MatTranspose()`, `MatMultTranspose()`, `MatMultTransposeAdd()`, `MatIsTranspose()`, `MatReuse`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/tutorials/ex27.c.html">src/ksp/ksp/tutorials/ex27.c</A><BR>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/elemental/matelem.cxx.html#MatHermitianTranspose_Elemental">MatHermitianTranspose_Elemental in src/mat/impls/elemental/matelem.cxx</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/scalapack/matscalapack.c.html#MatHermitianTranspose_ScaLAPACK">MatHermitianTranspose_ScaLAPACK in src/mat/impls/scalapack/matscalapack.c</A><BR>


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