petsc-3.8.4 2018-03-24

MatIsSymmetric

Test whether a matrix is symmetric

#include "petscmat.h" 
PetscErrorCode MatIsSymmetric(Mat A,PetscReal tol,PetscBool  *flg)

Collective on Mat

	A	- the matrix to test
	tol	- difference between value and its transpose less than this amount counts as equal (use 0.0 for exact transpose)

flg -the result

Notes: For real numbers MatIsSymmetric() and MatIsHermitian() return identical results