Article: 145256 of rec.radio.scanner From: zeno@magicnet.net Newsgroups: rec.radio.scanner Subject: Re: Your Old Calculator Date: 19 Mar 1999 03:34:25 GMT Organization: MagicNet, Inc. Lines: 24 Message-ID: References: <19990304172725.07557.00003653@ng-fa1.aol.com> <7bpn82$9co@bgtnsc03.worldnet.att.net> <01be6a6d$b8258a00$LocalHost@default> <36eedcb8.47248985@news2.cts.com> <36EDFEFA.492A@compuserve.com> NNTP-Posting-Host: pm65-21.magicnet.net Path: news1.meer.net!news3.best.com!news2.best.com!news.maxwell.syr.edu!news.magicnet.net!not-for-mail Xref: news1.meer.net rec.radio.scanner:145256 In article <36EDFEFA.492A@compuserve.com>, WayneOHere@compuserve.com wrote: > Bill Cheek wrote: > > > > zeno@magicnet.net wrote: > > > > > The real test of a calculator is to compute 3^201. The answer should be > > > 7.968419666*10^95. Most calculators do not get the last digits correct. > > > The last 3 digits of the mantissa should be 666 on a 10 digit calcultator. > > > > My ancient HP-41 calculator shows 7.9684196*10^95 > > > > And my venerable HP-15C reads 7.968419664 x 10^95. That's pretty close > to the Windows Calculator result of 7.968419666276 x 10^95. And, > interestingly enough, if you instead tell the HP-15C to compute e to the > (201 * natural log(3)) you get 7.968420285 x 10^95. So it's pretty > smart, too, knowing how to do the computation without losing precision. > > No, I don't want to sell it, thanks. :) Best calculator I ever had. The information about the 3^201 calculation is in the HP-15C Advanced Funtions Handbook by the way. Is was an extra cost additional book for the 15C.