SNESLineSearchBTSetAlpha#
Sets the descent parameter, alpha, in the SNESLINESEARCHBT
variant.
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESLineSearchBTSetAlpha(SNESLineSearch linesearch, PetscReal alpha)
Input Parameters#
linesearch - linesearch context
alpha - The descent parameter
See Also#
SNESLineSearch
, SNESLineSearchSetLambda()
, SNESLineSearchGetTolerances()
, SNESLINESEARCHBT
, SNESLineSearchBTGetAlpha()
Level#
intermediate
Location#
src/snes/linesearch/impls/bt/linesearchbt.c
Index of all SNES routines
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Index of all manual pages