MatInterpolateAdd#

w = y + A*x or A’*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#

mat - 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#

src/mat/interface/matrix.c

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages