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Instructions here on how to use the HP-80 - Printable Version

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Instructions here on how to use the HP-80 - Gene - 06-17-2003

http://www.rskey.org/gene/hpgene/HP80.html

Someone wrote to me recently and was looking for instructions on how to do time value of money problems on the HP-80 (HP's first business calculator) since it didn't work like most financial calculators since then. The page above has been on my webpage for sometime now, but folks may not be aware of it. Just an FYI.