scipy/scipy — pull request #3744 by ev-br (2014-06-18 20:13:38+00:00)
Title: stub out inherited methods of Akima1DInterpolator

As it stands, `Akima1DInterpolator.from_spline` does not create an Akima interpolant --- it just creates a pp representation of its spline argument instead.
Both `from_spline` and `from_bernstein_basis` are artifacts of inheritance from PPoly. (cross-ref gh-3742)

Also cross-reference Akima1D and Pchip in the docs, while I'm at it.