SLANG a problem solving language for continuous-model simulation and optimization. SLANG is a mathematical problem modeling and solution language. It is one of several languages in the programming subsystem of the Computer User Executive (CUE) System developed by TRW Systems. SLANG is both a procedural and a command language designed primarily for the “casual” user. Consequently, much attention was paid to programming ease, “natural” syntax rules, readability, and debugging ease. On the other hand, SLANG is designed to permit the solution of very sophisticated mathematical problems, characterized by iterative solution methods. Its translated object code therefore contains complex numerical solution logic in addition to the object code of its procedural syntax.