How do you use your calculator(s)? (or did*)

[Trond]

I use HP 35S quite a lot at university, to quickly check on test/homework score means and SD for students, summing up each individual score on a test, etc. I sometimes use some of the others for this as well (HP 42S, HP 32SII). The HP42S I have mostly used to refresh mathematics with, to play around with some functions that I find interesting (sometimes related to biology). One reason I rarely take it to my work is that I don't want to lose the 42S. HP 32SII and 35S are also handy for quick conversions. More recently I have also used 41CV for all of the above (with programmed conversions).