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Excalibur 32-bit

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Once you have learned to use the stack in an HP calculator (an RPN implementation), for instance, you'll understand why RPN is so popular with the more technical-minded among us.
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If the alternative is a calculator without decent editing facilities, perhaps... but with even the simple editing of a, say, TI-83, I see no advantage of RPN over standard algebraic syntax that most people can read fluently.

I have used both algebraic and RPN calculators as stand alone machines and on computer programs.  I think that RPN comes into its own with stand alone machines - I can input data MUCH more quickly and accurately using RPN logic on those machines.  I have both a TI-89 (algebraic) and an HP-49G (algebraic or RPN) and, in my opinion, the latter machine is far more productive in daily use when used in RPN mode.  On the computer I don't find the advantage nearly as noticeable, and there are a lot of clever algebraic based calculators available: particularly ones without a keypad that are for 'just figurin ..' like Calcute ( or SpeQ Mathematics ( both of which are freeware.

Both SpeQ and Calcute look pretty nice - thanks for those link!


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