The Nut CPU (HP Calculator CPU) [pdf]

Re:The Nut CPU (HP Calculator CPU) [pdf] by AmphibianTree on Tuesday August 13, 2019 @09:40PM (#20692003)

A long time ago, I worked for the HP Calculator support...made so many people happy by teaching them RPN. Most of the HP calculators had an RPN mode in the last few decades and they’d get stuck in it...a little 1, 2, +, 1,+ would be all the training wheels they’d need to understand RPN. Shame it’s not used more broadly.

https://en.wikipedia.org/wiki/Reverse_Polish_notation

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Re:The Nut CPU (HP Calculator CPU) [pdf] by tyingq on Tuesday August 13, 2019 @10:49PM (#20692328)

/bin/dc or bc, or M-x calc in Emacs or galculator on the off chance that some HN visitor hasn't experienced RPN.

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Re:The Nut CPU (HP Calculator CPU) [pdf] by mlyle on Wednesday August 14, 2019 @02:07AM (#20693083)

bc isn't a RPN calculator. dc isn't a very good one ;)

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Re:The Nut CPU (HP Calculator CPU) [pdf] by terinjokes on Wednesday August 14, 2019 @02:16AM (#20693129)

I've been using dc for a while now, is there another one you'd recommend?

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Re:The Nut CPU (HP Calculator CPU) [pdf] by colanderman on Wednesday August 14, 2019 @09:06AM (#20695100)

For terminals, orpie: https://github.com/pelzlpj/orpie (source) https://opensource.com/article/19/1/orpie (demo)

For Android, RealCalc: https://play.google.com/store/apps/details?id=uk.co.nickfine...

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