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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Arctan: to use with single or with double arguments?
Date: Sun, 26 Sep 2010 00:31:35 -0700
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Date: 2010-09-26T00:31:35-07:00
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On 09/25/2010 02:34 PM, Ada novice wrote:
>
> After reading that article, I decided to use Arctan2. I don't really
> know why Arctan exists in the first place :).

I presume because there are some cases where one has a single-valued tangent 
that my be used in Arctan (Tangent), but not X and Y values for Arctan (Y, X).

-- 
Jeff Carter
"We'll make Rock Ridge think it's a chicken
that got caught in a tractor's nuts!"
Blazing Saddles
87