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From: umapd51@suna.cc.ic.ac.uk (W.A.C. Miev-Jedrzejowicz)
Newsgroups: comp.sys.handhelds
Subject: Re: SPEED vs FAST question (HP28S)
Message-ID: <1990Feb23.041941.15324@cc.ic.ac.uk>
Date: 23 Feb 90 04:19:41 GMT
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rst I heard of speed mode was via Jake Schwartz who reads and writes
here too. The Danish user club described 
how to use this mode. Then I wrote a n RPL program which created the
necessary machine language instructions to turn on speed 15 (the
naximum). Then other smart folk write (wrote) direct machine language
programs to do the job. I suggested in my book "Customize Your HP-28"
that speeding up uses more power, and repeated this accusation in the
club journal. It has since nbeen pointed out that FAST mode actually
uses lkess power, since the consumption goes up less rapidly than the
speed. There are othe problems though, in particular that speed mose
degrades to normal mode under certain (as yet undetermined)
circumstances, and HP engineers suggest that under particular
circumstances (low battery?) results might be wrong in fast mode. As for
books, have you heard of EduCALC? (Apologies in advance to other
readers!)
Wlodek Mier-Jedrzejowicz.