flo-poly
A practical, root-focused JavaScript polynomial utility library.
poly-roots
Find all roots of a polynomial using the Jenkins-Traub method
quadratic-roots
Compute the real roots of a quadratic equation in a numerically stable manner
durand-kerner
Finds multiple roots of polynomials using Weierstrass' method
nomial
A TypeScript implementation of High-Performance Polynomial Root Finding for Graphics (Yuksel 2022)