This is documentation for an old release of SciPy (version 0.9.0). Read this page Search for this page in the documentation of the latest stable release (version 1.15.1).

scipy.optimize.fixed_point

scipy.optimize.fixed_point(func, x0, args=(), xtol=1e-08, maxiter=500)

Find the point where func(x) == x

Given a function of one or more variables and a starting point, find a fixed-point of the function: i.e. where func(x)=x.

Uses Steffensen’s Method using Aitken’s Del^2 convergence acceleration. See Burden, Faires, “Numerical Analysis”, 5th edition, pg. 80