If it doesn't have an Enter key, it's not RPN
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02-09-2015, 03:33 AM
Post: #13
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RE: If it doesn't have an Enter key, it's not RPN
In order to appease the RPN gods for my faux pas in mistakingly purchasing a non-RPN calculator, today I picked up two genuine non-HP RPN calculators, a Sinclair Scientific Programmable and a National Semiconductor NS600.
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