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EPSPowerSetSignNormalization

Sets a flag to indicate whether the Bx vector should be normalized by the sign of the first non-zero element in the vector. E.g., if this is true, the post-normalization value of the first non-zero element in the vector is guaranteed to be positive.

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSPowerSetSignNormalization(EPS eps,PetscBool sign_normalization)
Logically Collective

Input Parameters

eps  - the eigenproblem solver context
sign_normalization  - whether Bx should be multiplied by the sign of the first non-zero element when performing normalization steps

Options Database Key

-eps_power_sign_normalization  - Sets the sign normalization flag

See Also

EPSPowerGetSignNormalization()

Level

advanced

Location

src/eps/impls/power/power.c

Examples

src/eps/tutorials/ex34.c


Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages