Re: [Scheme-reports] (angle -0.0-0.0i) should be -pi, but R7RS-draft-6 prohibits this Vassil Nikolov (08 Aug 2012 03:15 UTC)

Re: [Scheme-reports] (angle -0.0-0.0i) should be -pi, but R7RS-draft-6 prohibits this Vassil Nikolov 08 Aug 2012 03:14 UTC


Mark H Weaver <mhw@netris.org> wrote:

> ...
> Note that X3J13 voted for these changes to Common Lisp in January 1989.
>
>  Search for "COMPLEX-ATAN-BRANCH-CUT" in the following pages for more
> details:
>
>   http://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node128.html
>   http://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node129.html

  In case it is of interest, the full write-up can
  be found e.g. at

    <a href="http://www.lispworks.com/documentation/lw61/CLHS/Issues/iss069_w.htm">CLHS: Issue COMPLEX-ATAN-BRANCH-CUT Writeup</a>
    <a href="http://www.lispworks.com/documentation/lw61/CLHS/Issues/iss192_w.htm">CLHS: Issue IEEE-ATAN-BRANCH-CUT Writeup</a>

  ---Vassil.

--
Would you like your metaphors shaken or stirred?

Vassil Nikolov | Васил Николов | < vnikolov@pobox.com>

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