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Groups > comp.lang.python > #29151

Re: What's wrong with my arc tangens calculation?

Date 2012-09-14 12:54 +0200
From Laszlo Nagy <gandalf@shopzeus.com>
Subject Re: What's wrong with my arc tangens calculation?
References <ba77717e-d812-4132-b477-cc3a79c41476@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.694.1347620106.27098.python-list@python.org> (permalink)

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> but when i lookup tg in a paper table (last decade math book) i've got these values:
>
> tg(63'10'') = 1.9768
> tg(63'20'') = 1.9912
> tg(63'30'') = 2.0057
>
> For me python should return something more like 63'2x'' than 63'4x''(becasue 63'30'' is higher than 2.0)
>
> what's wrong?
>
63° 30" is 63.5°. So nothing is wrong. (You know, 1° = 60 arc second!)

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Thread

What's wrong with my arc tangens calculation? xliiv <tymoteusz.jankowski@gmail.com> - 2012-09-14 03:49 -0700
  Re: What's wrong with my arc tangens calculation? Chris Angelico <rosuav@gmail.com> - 2012-09-14 20:54 +1000
  Re: What's wrong with my arc tangens calculation? Laszlo Nagy <gandalf@shopzeus.com> - 2012-09-14 12:54 +0200
    Re: What's wrong with my arc tangens calculation? xliiv <tymoteusz.jankowski@gmail.com> - 2012-09-14 04:18 -0700
    Re: What's wrong with my arc tangens calculation? xliiv <tymoteusz.jankowski@gmail.com> - 2012-09-14 04:18 -0700
  Re: What's wrong with my arc tangens calculation? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-14 14:13 +0100
  Re: What's wrong with my arc tangens calculation? Chris Angelico <rosuav@gmail.com> - 2012-09-14 23:17 +1000

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