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RPN Calculator

A simple RPN calculator, the dot and +/- keys are currently inop, but will be fixed with an update soon.

To use:
Input your number, press the down arrow, the stack indicator will light up, repeat with another number.

Press any operation, two numbers will bne poped from the stack and the result will be displayed, you can then push that result onto the stack.

If the light above the stack indicator lights up you have an error, it could be a stack overflow or you don't have enough numbers in the stack to do a calculation for example.