A high level language for Mathematical Programming modeling is provided within a low level general purpose object oriented programming language. Libraries can be provided with a standard low level language enabling the use of the high level programming semantics in the low level programming environment. Using the libraries, the user can easily build complex Mathematical Programming models by using high level constructs while still taking advantage of the runtime efficiency and general purpose computing offered by the low level language.In an embodiment, operator overloading of a low level language is used to build semantics of a high level language.