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Lu:

Personally speaking, I don't remember that TI goof, however again speaking personally, for some reason or another, I could never get comfortable with the TI style keyboard (algebraic). I found that the HP arrangement, design or whatever one might call it, was much more to my liking.

I've had 2 different HP hand held calculators, first was a long gone HP-25, which worked well enough, but their battery packs were, as I recall, a pain, at least I had problems with them. Currently, as mentioned, I have a HP 11C, no longer made. It was out of production in the early 1990's, when I bought it. Never had a problem with it. Batteries seem to last 5 + years, though I don't use the thing nearly as much as I once did. I do recall athat fellow I worked with in Cleveland years ago had an HP calculator, I believe it was their HP-65, the one that utilized pre loaded program strips or "pacs" that covered various fields, mechanical engineering, chem. eng, civil eng and so forth. I don't know if they had a pre-loaded strip on celestial nav. I believe the HP-48 series had a "nav pac", though I've never actually come upon one. HP=48's are things of the past too.

One of these days, if and when I ever get organized, I must sit down with a manual, and relearn how to use a slide rule. I never thought that I could forget anything so completely.

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