Plus - Simple RPN Calculator

A very simple RPN calculator.

Reverse polish notation is a way of using a calculator that, after learning it, will make your calculations faster and more accurate. Try this simple RPN calculator to get going.

RPN Works like this: Instead of typing "2 + 2" (infix notation), you type "2 Enter 2 +". Numbers you enter will be put on a stack and mathematical operators operate on the last elements of the stack. So, "(12 × 3) + 1" would be written as "12 Enter 3 × 1 +".

This app is free software.