MPSolve -- a library for finding roots of univariate polynomials

Starting with version 1.16, Macaulay2 incorporates the MPsolve (version 3) package, available at https://numpi.dm.unipi.it/_media/software/mpsolve, and originally developed by Dario Bini, Giuseppe Fiorentino, and Leonardo Robol.

This library is used by the roots function, for finding complex roots of a univariate polynomial