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HP 12C Buy vs rent decision program question - Printable Version

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HP 12C Buy vs rent decision program question - acser - 09-27-2020 12:47 PM

In the HP 12c manual at http://h10032.www1.hp.com/ctg/Manual/c00363319.pdf on page 130, there is a sample program for the Buy vs Rent decision. I tried to key it and it works. Also tried to understand it, but I still cannot explain what program lines 48 and 49 do (the program is on page 131). If anyone can help, I would greatly appreciate it. I am also interested in other folks' interpretation of this program.

I created the stack diagram. Here it is: https://docs.google.com/spreadsheets/d/14MclWHW667a3O6fUoWpt_5FmMYF6hbuCQ-HTuQp8bQ0/edit?usp=sharing

Thanks in advance.