MatCreateNormal

Creates a new matrix object that behaves like A'*A.

#include "petscmat.h" 
PetscErrorCode PETSCMAT_DLLEXPORT MatCreateNormal(Mat A,Mat *N)

Collective on Mat

A -the (possibly rectangular) matrix

N -the matrix that represents A'*A

Notes: The product A'*A is NOT actually formed! Rather the new matrix object performs the matrix-vector product by first multiplying by A and then A'

Mat MatCreateNormal(Mat mat)

MatCreateNormal(mat,&A); return A;