MatLRCGetMats#
Returns the constituents of an LRC matrix
Synopsis#
#include "petscmat.h"
PetscErrorCode MatLRCGetMats(Mat N, Mat *A, Mat *U, Vec *c, Mat *V)
Not collective
Input Parameter#
N - matrix of type
MATLRC
Output Parameters#
A - the (sparse) matrix
U - first dense rectangular (tall and skinny) matrix
c - a sequential vector containing the diagonal of C
V - second dense rectangular (tall and skinny) matrix
Notes#
The returned matrices should not be destroyed by the caller.
U, c, V may be NULL if not needed
See Also#
Matrices, MatLRCSetMats(), Mat, MATLRC, MatCreateLRC()
Level#
intermediate
Location#
Implementations#
MatLRCGetMats_LRC() in src/mat/impls/lrc/lrc.c
Index of all Mat routines
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Index of all manual pages