Forth Calculator

Features Forth Calculator

A Free, RPN (Reverse polish notation) calculator with programmable buttons and many builtin functions.
It is equipped with two stacks, a main and an auxiliary.
You can freely move data between them by swiping left or right.
The stack operators are from the FORTH programming language, in fact the whole calculator logic is implemented in a custom FORTH.The pro version gives you full programming capabilities where you can write your own operators.