From: Ada novice <ycalleecharan@gmx.com>
Subject: Re: Arctan: to use with single or with double arguments?
Date: Sun, 26 Sep 2010 01:21:20 -0700 (PDT)
Date: 2010-09-26T01:21:20-07:00 [thread overview]
Message-ID: <5e6045ca-535b-4c91-ba5c-8c6d8b184ab5@w19g2000yqb.googlegroups.com> (raw)
In-Reply-To: bef37b39-006c-4102-a04e-c7cce0d4be58@g6g2000pro.googlegroups.com
On Sep 26, 6:02 am, jpwoodruff <jpwoodr...@gmail.com> wrote:
> So my suggestion is to use two-parameter arctan, and interpret the
> quadrant of the result, and thus the sign of the sine, in the physical
> sense. If there is no mistake, your differential operator works even
> outside the particular domain where you are solving your problem.
>
> Best wishes
> John
Thanks. Yes it makes sense that I stick to the two-parameter arctan.
I'm working with a rotating system
and quadrant information is important. It's amazing to see
how different software treats the order of the two-parameter arctan
differently. If I'm right
C is like Ada but in MathCad, the order of the arguments is reversed.
next prev parent reply other threads:[~2010-09-26 8:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-24 21:32 Arctan: to use with single or with double arguments? Ada novice
2010-09-24 21:55 ` Jeffrey Carter
2010-09-25 8:44 ` Ada novice
2010-09-25 17:31 ` Jeffrey Carter
2010-09-25 21:34 ` Ada novice
2010-09-26 4:02 ` jpwoodruff
2010-09-26 8:21 ` Ada novice [this message]
2010-09-26 7:31 ` Jeffrey Carter
2010-09-26 8:24 ` Ada novice
2012-02-11 0:26 ` Jack Mitchell
2012-02-11 1:11 ` Adam Beneschan
2012-02-11 8:53 ` Simon Wright
2012-02-11 10:46 ` AdaMagica
2012-02-11 15:29 ` Simon Wright
2012-02-11 16:21 ` Georg Bauhaus
2012-02-11 16:47 ` Simon Wright
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