4 ms·
I still have the HP-15C I got back in 1990 and use it regularly. The keyboard still works perfectly and I've only changed the batteries in it two or three time
by MegaDeKay 11y ago
I still have the HP-15C I got back in 1990 and use it regularly. The keyboard still works perfectly and I've only changed the batteries in it two or three times. The only thing wrong with it is a rubber foot or two that has fallen off the back. Absolutely amazing.
- aidenn0 11y agoMy dad talked by out of my 11c by buying me a 35s.
- jhallenworld 11y agoI like the construction of these calculators, but I'm not a huge fan of the programming language. I think the Casio FX-4000P / RS EC-4020 was the pinnacle, but this was a few years later (and admittedly, not as numerically good as the HP). Editing was far easier with the dot-matrix display. Compare the programs: http://www.rskey.org/CMS/8-programmable-calculators/299-fx4000p http://www.rskey.org/CMS/8-programmable-calculators/299-fx40... http://www.rskey.org/hp15c http://www.rskey.org/hp15c Casio improved the fx4000p, but I think the design was not as coherent: http://www.rskey.org/fx4500p http://www.rskey.org/fx4500p
- buserror 11y agoYou can buy perfect replacement rubber feet on ebay, theres a very nice seller there (from canada if I remember correctly)