Enter — RPN Calculator

By Bastiaan Meelberg on AppTrack Ninja.

True four-level stack, undo

Enter is a Reverse Polish Notation calculator with a true four-level stack — for people who think in RPN and are tired of hunting for the equals key. Free to download, with every everyday function included. There are no parentheses and there is no equals. Type a number, press ENTER, type another, press the operation. The answer is already there. A TRUE FOUR-LEVEL STACK X, Y, Z and T, with T replicating as the stack drops — so a constant stays where you put it and repeated operations simply work. LAST x brings back the argument the previous function consumed. Roll up, roll down, exchange X and…

Categories: Utilities

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