RPN Calc
RPN Calc
A free RPN (reverse polish notation) calculator.
RPN calculators does not use parenthesis and requires less key pressing than usual calculators. For example 3 * (7 - 5) + 2 in RPN is 7 5 - 3 * 2 +.
This calculator offers three display formats:
◦standard
◦scientific: number always displayed with Exx
◦engineer: number displayed with Exx format where xx is a multiple of 3.
You toggle between these three formats by pressing the "Format" key.
Examples
To calculate 1/(1+sqrt(2)) do the following:
◦press 1
◦press ENTER
◦press 2
◦press sqrt
◦press 1
◦press +
◦press /
To calculate sin(π/3) do the following:
◦press π
◦press 3
◦press /
◦press sin