slepc-main 2024-11-09

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

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