MatDenseGetColumn#
gives access to a column of a dense matrix. This is only the local part of the column. You MUST call MatDenseRestoreColumn() to avoid memory bleeding.
Synopsis#
#include "petscmat.h" 
PetscErrorCode MatDenseGetColumn(Mat A, PetscInt col, PetscScalar *vals[])
Not Collective
Input Parameters#
- A - a - MATSEQDENSEor- MATMPIDENSEmatrix
- col - column index 
Output Parameter#
- vals - pointer to the data 
Note#
Use MatDenseGetColumnVec() to get access to a column of a MATDENSE treated as a Vec
See Also#
Matrices, Mat, MATDENSE, MatDenseRestoreColumn(), MatDenseGetColumnVec()
Level#
intermediate
Location#
Examples#
Implementations#
MatDenseGetColumn_MPIDense() in src/mat/impls/dense/mpi/mpidense.c
MatDenseGetColumn_SeqDense() in src/mat/impls/dense/seq/dense.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages