Applied Optimization: Formulation and Algorithms for Engineering Systems (Baldick, R.; 2006)

This book thoroughly covers linear and nonlinear simultaneous equations, unconstrained optimization, and equality and inequality constrained optimization. It is well written and organized. It is an excellent text for rigorously introducing graduate and advanced undergraduate engineers to nonstochastic optimization. It also serves as an excellent reference for engineers in the field who need a clear introduction to this area of mathematics/operations research.