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Everything HP200LX: Knowledge, Products, Service

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(PDF, 2.6 MB)

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RPN Fan

RPN Fan

Thanks for Ed Keefe's article on Reverse Polish Notation (RPN). Algebraic notation may work the way you write, but RPN works the way you think, and that's what's important in a hand-held calculator. Anyone who believes otherwise should keep track of the number of times they go back and insert extra parentheses while writing an equation -- easy with a pencil, but not with a calculator keyboard.

Reversing the decline in popularity of RPN requires more than increased awareness of its advantages. I would love for HP to market an RPN calculator similar in size to the diminutive "shirtpocket" calculators.

I.L Tyler

Ashland OH, USA

iPhone Life magazine


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