# scipy.interpolate.CubicHermiteSpline.from_spline

classmethod CubicHermiteSpline.from_spline(tck, extrapolate=None)

  Construct a piecewise polynomial from a spline

  Parameters
    tck

      A spline, as returned by `splrep` or a BSpline object.

    extrapolate bool or ‘periodic’, optional

      If bool, determines whether to extrapolate to out-of-bounds points based on first and last intervals, or to return NaNs. If ‘periodic’, periodic extrapolation is used. Default is True.