Scientific and Business RPN Calculator with : - mouse operated, with mouse "keypad" - standard functions - trigonometric functions - finance functions - RPN (Reverse Polish Notation) mode - infinite and circular stack - registers display (stack, 11 memory regs, finance registers) - display intermediate keystroke and results, status bar - navigation through history for entry correction and replay (with operation delete, skip, ... options) - save and reload your calculations to file - multiple auto-save on exit options - print - quick help - ... ... unmatched features free for ever (no trial period, full version for free)!