PETSc version 3.16.3
MatCreateNormalHermitian
Creates a new matrix object that behaves like (A*)'*A.
Synopsis
#include "petscmat.h"
PetscErrorCode MatCreateNormalHermitian(Mat A,Mat *N)
Collective on Mat
Input Parameter
 A   the (possibly rectangular complex) matrix

Output Parameter
 N   the matrix that represents (A*)'*A

Notes
The product (A*)'*A is NOT actually formed! Rather the new matrix
object performs the matrixvector product by first multiplying by
A and then (A*)'
Level
intermediate
Location
src/mat/impls/normal/normmh.c
Examples
src/ksp/ksp/tutorials/ex27.c.html
Index of all Mat routines
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Index of all manual pages