MatGetDiagonal
Gets the diagonal of a matrix.
Synopsis
int MatGetDiagonal(Mat mat,Vec v)
Collective on Mat and
Vec
Input Parameters
mat | - the matrix
|
v | - the vector for storing the diagonal
|
Output Parameter
v -the diagonal of the matrix
Notes
For the SeqAIJ matrix format, this routine may also be
calledon a LU factored matrix; in that case it routines the reciprocal
ofthe diagonal entries in U. It returns the entries permuted by
therow and column permutation used during the symbolic factorization.
Keywords
matrix, get, diagonal
Location: src/mat/interface/matrix.c
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