MatInterpolateAdd#
\(w = y + A*x\) or \(A^T*x\) depending on the shape of the matrix
Synopsis#
#include "petscmat.h"
PetscErrorCode MatInterpolateAdd(Mat A, Vec x, Vec y, Vec w)
Neighbor-wise Collective
Input Parameters#
A - the matrix
x - the vector to be multiplied by the interpolation operator
y - the vector to be added to the result
Output Parameter#
w - the resulting vector
Notes#
w may be the same vector as y.
This allows one to use either the restriction or interpolation (its transpose) matrix to do the interpolation
See Also#
Matrices, Mat, MatMultAdd(), MatMultTransposeAdd(), MatRestrict(), PCMG
Level#
intermediate
Location#
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages