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Re: Russian formula for Casio
From: Alexandre Eremenko
Date: 2005 Feb 13, 22:00 -0500
From: Alexandre Eremenko
Date: 2005 Feb 13, 22:00 -0500
Frank, My Casio (fx250D, purchased in 1989) does not allow to input a sign before a number. If I type -2, the result is 2. So to enter -2 I have to type 2 and then +/- Alex. On Sun, 13 Feb 2005, Frank Reed wrote: > Alex you wrote: > "Enter the positive number, it will convert it, then > if necessary switch sign." > > Yep. But it's good to see that if you happen to enter the sign at the > beginning, it still works. If I enter -20d30'15", the built-in code has to store > the sign, then calculate 20+30/60+15/3600 and then apply the stored sign to the > result. And the casio does that correctly. Some (old!) code, such as the > code on the calculator George mentioned, would mistakenly calculate > -20+30/60+15/3600. > > -FER > 42.0N 87.7W, or 41.4N 72.1W. > www.HistoricalAtlas.com/lunars >
