`scipy.optimize._optimize:_line_search_wolfe12`

source: /scipy/optimize/_optimize.py:1156

Signature

def _line_search_wolfe12(f, fprime, xk, pk, gfk, old_fval, old_old_fval, **kwargs)

Summary

Same as line_search_wolfe1, but fall back to line_search_wolfe2 if suitable step length is not found, and raise an exception if a suitable step length is not found.

Raises

: _LineSearchError: If no suitable step size is found

Aliases

scipy.optimize._optimize._line_search_wolfe12