RPN Anywhere

This is a simple RPN Calculator which can use on macOS. *** Important! *** This calculator uses reverse Polish notation for input, and the operation method is different from a normal calculator using infix notation. If you dont know about RPN Calculator, you should learn about that before you download this app. How to use > Green up-arrow is ENTER button > Stack size can be changed at Preferences. > You can use multi calculators at same time. Please create new calculator from File Menu. > Programs trace key operations registered in Preferences. > You can type numbers and operators with keyboard and numeric pad. > To use programs and scientific operators, please change to scientific mode from View Menu.