FC-Win (tm) is a front-end program for Fortran Calculus (tm). The Fortran Calculus (FC) language is for math modeling, simulation, and optimization. FC is based on Automatic Differentiation that simplifies computer code to an absolute minimum; i.e., a mathematical model, constraints, and the objective (function) definition. Minimizing the amount of code allows the user to concentrate on the science or engineering problem at hand and not on the (numerical) process requirements to achieve an optimum solution. FC-Win has many (60+) example problems with output (see Demos) for viewing and getting ideas on solving your own problems. Please share this Calculus (level) Programming tool with your friends. Thanks!. FC-Win is licensed as freeware, full size of the download is 3.1 MB. You can download a free version of FC-Win by following download link at Free Downloads section of this page. FC-Win is developed or distributed by Optimal Designs Enterprise and is listed under business math & scientific tools.