numpy.polynomial.legendre.Legendre.fromroots

method

classmethod polynomial.legendre.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

rootsarray_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