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Crunch your numbers with the rpn calculator that fits right along side every other iOS 8 app! Dont get held back by the conventions of traditional, keyboarded calculators that cant update their buttons with new functions without the use of a shift key! Use technology from the future, like swipe gestures to change key layouts or touching and holding a stack item to get a popup granting a range of options.
This calculator app uses the alternative method called "reverse polish notation" to provide input for calculations. For the curious, check out http://en.wikipedia.org/wiki/Reverse_Polish_notation for more information.