scipy.interpolate.PPoly.roots¶

PPoly.roots(discontinuity=True, extrapolate=None)[source]¶

Find real roots of the the piecewise polynomial.

Parameters:

Parameters:	discontinuity : bool, 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:	roots : ndarray 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.

discontinuity : bool, 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:

roots : ndarray

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.