petsc-3.6.2 2015-10-02
   
SNESLineSearchBTGetAlpha
Gets the descent parameter, alpha, in the BT linesearch variant. 
Synopsis
#include "petscsnes.h"  
PetscErrorCode SNESLineSearchBTGetAlpha(SNESLineSearch linesearch, PetscReal *alpha)
Input Parameters
linesearch  -linesearch context
Output Parameters
alpha  -The descent parameter
See Also
 SNESLineSearchGetLambda(), SNESLineSearchGetTolerances() SNESLINESEARCHBT
Level:intermediate
Location:src/snes/linesearch/impls/bt/linesearchbt.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages