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# scipy.interpolate.InterpolatedUnivariateSpline.__init__

`InterpolatedUnivariateSpline.``__init__`(x, y, w=None, bbox=[, None, None], k=3)
  Input:
    x,y - 1-d sequences of data points (x must be
      in strictly ascending order)
  Optional input:

    w - positive 1-d sequence of weights bbox - 2-sequence specifying the boundary of

    > the approximation interval. By default, bbox=[x[0],x[-1]]

    k=3 - degree of the univariate spline.

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