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Re: asin2?
Posted:
Aug 16, 2000 11:17 AM
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In article <B5C01FD196685CAE5@0.0.0.0>,
g.sande@worldnet.att.net (Gordon Sande) wrote:
>There seems to be little reason to call the function which goes from
>(x,y) to the angle the "arctangent" as opposed to the "arguement"
>which is the traditional complex variables name. Any of these will
>look at the signs of x and y to pick the quadrant and then use some
>transformation of x and y to use either arctan, arcsin or acrcos. For
>arctan, use y/x. For arcsin, use y/sqrt(x*x+y*y). etc (all subject to
>typos)
I agree with you completely. "Argument" (or "arg") would surely have
been a better name than "atan2" for that function.
>One can only guess that atan2 ended up as the name because y/x was the
>simplest transformation.
That was my guess also.
Regards,
David Cantrell
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