slepc-main 2024-11-22
SVDTRLanczosGetScale
Gets the scale parameter for the GSVD.
Synopsis
#include "slepcsvd.h"
PetscErrorCode SVDTRLanczosGetScale(SVD svd,PetscReal *scale)
Not Collective
Input Parameter
| svd | - the singular value solver
|
Output Parameter
| scale | - the scale parameter
|
Notes
This parameter is relevant for the GSVD case only. If the parameter is
positive, it indicates the scale factor for B in matrix Z=[A;B]. If
negative, its absolute value is the threshold for automatic scaling.
See Also
SVDTRLanczosSetScale()
Level
advanced
Location
src/svd/impls/trlanczos/trlanczos.c
Index of all SVD routines
Table of Contents for all manual pages
Index of all manual pages