MUIProCalc is a MUI-based calculator much like Jimmy Yang`s Calc 3.0. It still lacks the plotter, but it offers a quite flexible history facility for inserting previously entered expressions. Different output formats offered and plenty of functions the user may choose from. Furthermore the look of the calculator may be customized. GiftWare, Version 1.3 include new features and bugs fix. Includes C Source. Author: Kai Iske