FC-Compiler (tm) is a Calculus (level) Compiler helps Tweak parameters.. The FortranCalculus (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-Compiler has many (60+) example problems with output (see Demos) for viewing and getting ideas on solving your own problems. These are improved productivity examples do to using Calculus (level) Problem-Solving. Please share this Calculus Problem-Solving tool with your friends. Thanks!Industry problems with solutions over the past twenty plus years have been put into a textbook to show the power of Calculus (level) Problem-Solving. The textbook as on our website at fortranCalculus.infotextbookwelcome . The software architect behind Calculus Compilers is Joe Thames (read about Joe on our About page).Help improve science and engineering productivity by supporting Joe Thames MetaCalculus University Rollout efforts visit metaCalculus.comcampaigns.html in developing MC Fortran. (There has been little if any corporate funding of Joes work for many years!) Help future science & engineers get jobs upon graduation. With MC Fortran one increases their productivity by a factor of twenty!Please visit our textbook at fortranCalculus.infotextbookwelcome and help support Calculus level compilers at metaCalculus.comcampaigns.html. Thanks!