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TouchRPN


4.0 ( 0 ratings )
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Developer: Daniel Staudigel
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A fully unit-aware, customizable, programmable, scientific and engineering RPN (reverse polish notation) calculator. Great for anything from basic math in the supermarket to evaluating the ground state energy of a simple harmonic oscillator on your Quantum Mechanics final (if they let you in with an iPhone, of course). TouchRPN knows most basic physical constants and units, as well as household, cooking, and "imperial" units. An built-in tutorial will show you how to use RPN if youre stuck, as well as how to access the advanced features.

Note: Ive removed the % key because I didnt have room for it on the front page. Feel free to change any of the front-page keys to % by doing the following: Press and hold the button youd like to replace. The customization screen should slide in after about half a second. Type in (for %) "0.01 * swap tuck *" into the "command" editor, "%" into the title editor, and then select whatever color you think is appropriate (generally, I use "function" for single-argument functions). Any button can be customized in this way. If you want to get back to the stock interface, go to the Settings app and select "Full Reset", and re-launch TouchRPN.