scipy.interpolate.PchipInterpolator.roots#
- PchipInterpolator.roots(discontinuity=True, extrapolate=None)[source]#
Find real roots of the piecewise polynomial.
- Parameters:
- discontinuitybool, optional
Whether to report sign changes across discontinuities at breakpoints as roots.
- extrapolate{bool, ‘periodic’, None}, optional
If bool, determines whether to return roots from the polynomial extrapolated based on first and last intervals, ‘periodic’ works the same as False. If None (default), use self.extrapolate.
- Returns:
- rootsndarray
Roots of the polynomial(s).
If the PPoly object describes multiple polynomials, the return value is an object array whose each element is an ndarray containing the roots.
See also