petsc-3.7.1 2016-05-15
MatMultConstrained
The inner multiplication routine for a constrained matrix P^T A P.
Synopsis
#include "petscmat.h"
PetscErrorCode MatMultConstrained(Mat mat,Vec x,Vec y)
Neighbor-wise Collective on Mat and Vec Many br
Input Parameters
| mat | - the matrix Many br |
| x | - the vector to be multilplied Many br |
Output Parameters
y -the result Many br
Notes
The vectors x and y cannot be the same. I.e., one cannot Many brcall MatMult(A,y,y). Many br
Many br
Keywords
matrix, multiply, matrix-vector product, constraint
See Also
MatMult(), MatMultTranspose(), MatMultAdd(), MatMultTransposeAdd()
Level:beginner
Location:src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages