`numpy.polynomial._polybase:ABCPolyBase.fromroots`

Summary

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.

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.
symbol : str, optional: Symbol representing the independent variable. Default is 'x'.