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# scipy.interpolate.PPoly.construct_fast

classmethod `PPoly.``construct_fast`(c, x, extrapolate=None, axis=0)

  Construct the piecewise polynomial without making checks.

  Takes the same parameters as the constructor. Input arguments `c` and `x` must be arrays of the correct shape and type. The `c` array can only be of dtypes float and complex, and `x` array must have dtype float.