petsc3.3p7 20130511
MatDiagonalScale
Scales a matrix on the left and right by diagonal matrices that are stored as vectors. Either of the two scaling matrices can be PETSC_NULL.
Synopsis
#include "petscmat.h"
PetscErrorCode MatDiagonalScale(Mat mat,Vec l,Vec r)
Collective on Mat
Input Parameters
 mat   the matrix to be scaled

 l   the left scaling vector (or PETSC_NULL)

 r   the right scaling vector (or PETSC_NULL)

Notes
MatDiagonalScale() computes A = LAR, where
L = a diagonal matrix (stored as a vector), R = a diagonal matrix (stored as a vector)
The L scales the rows of the matrix, the R scales the columns of the matrix.
See Also
MatScale()
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