Could you recommend me some book or website where I could learn about systems of nonlinear equations?
I have found several sources, but everywhere only a set of two equations is considered.
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up.Sign up to join this community
There is a book on Solving Systems of Polynomial Equations by Bernd Sturmfels. Certainly there are enough sources where systems of polynomial equations are considered, with more than just two equations.