numpy.polynomial.polynomial.polyfromroots()

numpy.polynomial.polynomial.polyfromroots

numpy.polynomial.polynomial.polyfromroots(roots) [source]

Generate a monic polynomial with given roots.

Return the coefficients of the polynomial

p(x) = (x - r_0) * (x - r_1) * ... * (x - r_n),

where the r_n are the roots specified in roots. If a zero has multiplicity n, then it must appear in roots n times. For instance, if 2 is a root of multiplicity three and 3 is a r