MatCreateSubMatrixFree#
Creates a reduced matrix by masking a full matrix.
Synopsis#
#include "petsctao.h"
PetscErrorCode MatCreateSubMatrixFree(Mat mat, IS Rows, IS Cols, Mat *J)
Collective
Input Parameters#
mat - matrix of arbitrary type
Rows - the rows that will be in the submatrix
Cols - the columns that will be in the submatrix
Output Parameter#
J - New matrix
Note#
The caller is responsible for destroying the input objects after matrix J has been destroyed.
See Also#
Level#
developer
Location#
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages