heck, yeah! and no software conflicts, works without electricity, and IIRC, K&E was/is the standard in slide rules, so not likely you're going to have slide rule envy any time soon. no need to get a $1K computer and a $500 software package to do calculations when there are plenty of trusty, old, and often times faster ways of doing it. Computers have their strengths, but they aren't the whole show. nk On Nov 17, 2006, at 10:35 AM, Earle Jones wrote: > I have a 1956 K & E slide rule and it does everything that I need. > Who needs more than three significant figures anyway?