petsc-3.7.7 2017-09-25
MatIsTranspose
Test whether a matrix is another one's transpose, or its own, in which case it tests symmetry.
Synopsis
#include "petscmat.h"
PetscErrorCode MatIsTranspose(Mat A,Mat B,PetscReal tol,PetscBool *flg)
Collective on Mat
Input Parameter
| A | - the matrix to test
|
| B | - the matrix to test against, this can equal the first parameter
|
Output Parameters
flg -the result
Notes
Only available for SeqAIJ/MPIAIJ matrices. The sequential algorithm
has a running time of the order of the number of nonzeros; the parallel
test involves parallel copies of the block-offdiagonal parts of the matrix.
See Also
MatTranspose(), MatIsSymmetric(), MatIsHermitian()
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