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ParametersReturns
line_search_wolfe1(f, fprime, xk, pk, gfk=None, old_fval=None, old_old_fval=None, args=(), c1=0.0001, c2=0.9, amax=50, amin=1e-08, xtol=1e-14)

Parameters

f : callable
fprime : callable
xk : array_like
pk : array_like
gfk : array_like, optional
old_fval : float, optional
old_old_fval : float, optional
The rest of the parameters are the same as for `scalar_search_wolfe1`. :

Returns

stp, f_count, g_count, fval, old_fval
gval : array

Examples

See :

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them


GitHub : /scipy/optimize/_linesearch.py#31
type: <class 'function'>
Commit: