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From: louxj@jacobs.CS.ORST.EDU (John W. Loux)
Newsgroups: comp.sys.handhelds
Subject: Re: 48sx units conversion error?
Keywords: 48sx units
Message-ID: <1991Apr24.180150.22064@lynx.CS.ORST.EDU>
Date: 24 Apr 91 18:01:50 GMT
References: <1991Apr24.034152.29237@netcom.COM>
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Organization: Solve and Integrate, Corvallis, OR
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In article <1991Apr24.034152.29237@netcom.COM> feustel@netcom.COM (David Feustel) writes:
>Entering .36 and selecting units gold degrees results in a conversion
>to 119 degrees. Entering .36_R and selecting units gold degrees
>results in 20 degrees. The calculator is in RAD mode thruout. Is this
>an error? If not, why don't I get the same conversion in both cases?
>-- 
>David Feustel, 1930 Curdes Ave, Fort Wayne, IN 46805, (219) 482-9631
>EMAIL: netcom.com

I don't remember where I read this, and I can't find it in the manuals
(doesn't mean it's not there), but a little experimentation verifies
that:

In terms of angular measure, a real number is considered to be a number
of cycles (i.e., multiples of 2\pi) and is considered so regardless of
angle mode.

Converting the real number 1 to degrees, radians and grads returns
360_\^o, 6.28318530718_r, and 400_grad, respectively, each of which is one
cycle in its respective units.

Unfortunately, when I perform the calculations you describe above, I
get 129.6_\^o and 20.6264806247_\^o which differ from your values (but
I am hoping yours are typing/rounding errors).  



John W. Loux
Solve and Integrate Corp.
louxj@jacobs.cs.orst.edu
john@solvint.UUCP