PETSc version 3.15.5
MatMultTransposeConstrained
The inner multiplication routine for a constrained matrix P^T A^T P. 
Synopsis
#include "petscmat.h" 
PetscErrorCode MatMultTransposeConstrained(Mat mat,Vec x,Vec y)
Neighbor-wise Collective on Mat
Input Parameters
|  | mat | - the matrix | 
|  | x | - the vector to be multilplied | 
Output Parameters
Notes
The vectors x and y cannot be the same.  I.e., one cannot
call MatMult(A,y,y).
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