classmethod Legendre.fromroots(roots, domain=[], window=None)
[source]
Return series instance that has the specified roots.
Returns a series representing the product (x - r[0])*(x - r[1])*...*(x - r[n-1])
, where r
is a list of roots.
Parameters: |
roots : array_like List of roots. domain : {[], None, array_like}, optional Domain for the resulting series. If None the domain is the interval from the smallest root to the largest. If [] the domain is the class domain. The default is []. window : {None, array_like}, optional Window for the returned series. If None the class window is used. The default is None. |
---|---|
Returns: |
new_series : series Series with the specified roots. |
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https://docs.scipy.org/doc/numpy-1.12.0/reference/generated/numpy.polynomial.legendre.Legendre.fromroots.html