MatCreateNormalHermitian#

Creates a new matrix object MATNORMALHERMITIAN that behaves like \(A^* A\).

Synopsis#

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

Collective

Input Parameter#

  • A - the (possibly rectangular complex) matrix

Output Parameter#

  • N - the matrix that represents \( A^* A\)

Note#

The product \( A^* A\) is NOT actually formed! Rather the new matrix object performs the matrix-vector product, MatMult(), by first multiplying by \(A\) and then \(A^*\)

If MatGetFactor() is called on this matrix with MAT_FACTOR_QR then the inner matrix A is used for the factorization

See Also#

Matrices, Mat, MATNORMAL, MATNORMALHERMITIAN, MatNormalHermitianGetMat()

Level#

intermediate

Location#

src/mat/impls/normal/normmh.c

Examples#

src/ksp/ksp/tutorials/ex27.c


Index of all Mat routines
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Index of all manual pages