Re: View of a Heretic (long) Message #16 Posted by Walter B on 21 May 2004, 8:20 a.m., in response to message #13 by Chris Woodhouse
I want to support Chris's view. In real life I need a small and reliable calculator, capable to do precise calculations with just a few clicks (no complicated menus to go through). My Background:
I owned a repaired HP 25C as my first real scientific calculator in the late seventies and early eighties. It took me almost to my Ph.D. in nuclear physics, and the only feature I was really missing at that time was linear regression. When I missed it to much, I bought an HP 11C, which had everything I wanted then for a reasonable price. Sadly, this item got lost some years later. Then, since HP 11C was not available anymore, I switched to an HP 32S and was quite happy with it. It was bigger in size, but I could not get anything smaller with RPN - and to read my programs turned out to be a lot easier.
Now I own an HP 48SX, HP 42S and HP 15C, too, and managed to get again an HP 25C and HP 11C. Looking at all these and summing up, my results are:
- HP 48SX is to big and complicated for using it. I certainly would have graded it differently, if I still would have to do complicated mathematical calculations everyday. But even then it is really to big to carry it everywhere. In my opinion, this holds for the newer models, too (HP 48G, HP49 etc.). No more pocket calculators.
- HP 42S is very nice (2 lines display, readable programs, lots of useful functions, covers almost everything). For me, however, the menu (or catalog) way of accessing functions is somewhat indirect. I prefer the blue and gold buttons instead. And the pioneers are a bit bigger than shirt pocket size. And, so far, I was not able to adjust display contrast of my HP 42S the way it comes as bright as in my HP 11C or HP 32S.
- HP 15C has everything necessary in a nice and small and reliable package. According to my experience, it contains all the scientific and technical math I needed in science studies at university and in professional life (and for more exotic applications I can program it). With a modernized user interface (high contrast dot matrix display, alphanumerical messages, readable programs instead of button codes, more memory, maybe (!) 6 stack levels) it would cover almost every wish I can think of for a real pocket device. For more, I would turn to a notebook or PC today. Or I will take a pencil and a sheet of paper ...
- Earlier models (LED) are still nice to look at (I've collected some of them), but their performance is outdated.
A modernized HP 15C as sketched above will find a market, taking into account all the people needing some bigger amount of math and being able to control it, appreciating good design and reliable quality. It could be THE scientific pocket calculator.
Nevertheless, this only my personal view. Good luck!
Edited: 21 May 2004, 8:36 a.m.
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