SNESLineSearchBTGetAlpha

Gets the descent parameter, alpha, in the SNESLINESEARCHBT variant.

Synopsis

#include "petscsnes.h"  
PetscErrorCode SNESLineSearchBTGetAlpha(SNESLineSearch linesearch, PetscReal *alpha)

Input Parameter

• linesearch - linesearch context

Output Parameter

• alpha - The descent parameter

See Also

SNESLineSearchGetLambda(), SNESLineSearchGetTolerances() SNESLINESEARCHBT, SNESLineSearchBTGetAlpha()

Level

intermediate

Location

src/snes/linesearch/impls/bt/linesearchbt.c

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