MatSubMatrixVirtualUpdate#
Updates a MATSUBMATRIX virtual submatrix
Synopsis#
#include "petscmat.h" 
PetscErrorCode MatSubMatrixVirtualUpdate(Mat N, Mat A, IS isrow, IS iscol)
Collective
Input Parameters#
- N - submatrix to update 
- A - full matrix in the submatrix 
- isrow - rows in the update (same as the first time the submatrix was created) 
- iscol - columns in the update (same as the first time the submatrix was created) 
Note#
Most will use MatCreateSubMatrix() which provides a more efficient representation if it is available.
See Also#
Level#
developer
Location#
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages