Could anyone please help me with the way in which the INT key is used on an HP-70. I have an HP-70 in perfect condition (as far as I know) that I plan to sell, but I don't know how to check fully the INT key function - all the others are OK.
On most (HP) calculators INT means INTEGER but on this one I guess it means INTEREST of some kind. I just don't know which combination of the n, i, PMT, PV & FV entries have to be entered to use this and what calculation is then performed. Most uses of this give me an flashing display illegal operation warning, but on the odd occasion I have got a result but can't remember how I got it!
Thanks for any help received.