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)!