petsc-3.4.2 2013-07-02

# MatTranspose

Computes an in-place or out-of-place transpose of a matrix.

### Synopsis

    #include "petscmat.h"
    PetscErrorCode  MatTranspose(Mat mat,MatReuse reuse,Mat *B)

Collective on Mat

### Input Parameter

| mat | - the matrix to transpose
| reuse | - either MAT_INITIAL_MATRIX or MAT_REUSE_MATRIX

### Output Parameters

B -the transpose

### Notes

If you pass in &mat for B the transpose will be done in place, for example MatTranspose(mat,MAT_REUSE_MATRIX,&mat);

Consider using MatCreateTranspose() instead if you only need a matrix that behaves like the transpose, but don't need the storage to be changed.

### See Also

MatMultTranspose(), MatMultTransposeAdd(), MatIsTranspose(), MatReuse

Level:intermediate
Location: src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages

### Examples

src/ksp/ksp/examples/tutorials/ex10.c.html
src/snes/examples/tutorials/ex70.c.html