__call__(self, x, nu=None, extrapolate=None)
Derivatives are evaluated piecewise for each polynomial segment, even if the polynomial is not differentiable at the breakpoints. The polynomial intervals are considered half-open, [a, b)
, except for the last interval which is closed [a, b]
.
Points to evaluate the interpolant at.
Orders of derivatives to evaluate. Each must be non-negative.
Whether to extrapolate to out-of-bounds points based on first and last intervals, or to return NaNs.
Interpolated values. Shape is determined by replacing the interpolation axis in the original array with the shape of x.
Evaluate the piecewise polynomial or its derivative
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