Ipopt: Ipopt (Interior Point OPTimizer, pronounced eye-pea-Opt) Ipopt: Ipopt: Ipopt (Interior Point OPTimizer, pronounced eye-pea-Opt) is a software Ipopt: package for large-scale, nonlinear optimization. It is designed to Ipopt: find (local) solutions of mathematical optimization problems. Ipopt: Ipopt: Homepage: https://projects.coin-or.org/Ipopt Ipopt: Ipopt: Ipopt: Ipopt: