> > which one is a good solver(open source) for quadratic equation using jump > ? Thank you >
What is jump? PolynomialRoots.jl <https://github.com/giordano/PolynomialRoots.jl>is a package to find all roots (real and complex, they will have always Complex type) of polynomials of any degree, with a specialized function for quadratic equations. Though, I don't know if this is what you're looking for. Bye, Mosè