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View Full Version : HP calc, old school for the smart kids


CardinalFJ60
12-01-2005, 12:38 PM
I don't use my HP15c anymore and checked the prices on eBay...like $175+! Anyone here have a need for one of these before I sell it there? I have the manual and it's in near perfect condition.

I'd love to get the ebay $$, but more than happy to sell cheaper to anyone here. like $140 obo?

PabloCruise
12-03-2005, 10:25 AM
Is the 15 a RPN unit?

I love my 48 - still have it from engineering school, still use it.

My wife was frightened when she realized that it had 3 wire bound manuals...

CardinalFJ60
12-03-2005, 10:40 AM
what does RPN mean?

Yeah, I like the old HPs..I gave it to my wife to do some simple math. (heh, heh, heh)..."the order is all messed up"...

PabloCruise
12-03-2005, 11:17 AM
what does RPN mean?

Yeah, I like the old HPs..I gave it to my wife to do some simple math. (heh, heh, heh)..."the order is all messed up"...

I think you just answered if the "order is all messed up"

RPN = Reverse Polish Notation

Example:

2
Enter
3
Plus

5 shows up on the screen...

CardinalFJ60
12-03-2005, 02:59 PM
got'cha...yeah, that's how it works. I still have trouble using 'regular' ones sometimes.