From: Yukihiro Matsumoto <matz@...>
Date: 2009-07-04T01:17:15+09:00
Subject: [ruby-core:24128] Re: [Bug #1708] require 'complex' Causes Unexpected Behaviour

Hi,

In message "Re: [ruby-core:24126] [Bug #1708] require 'complex' Causes Unexpected Behaviour"
    on Fri, 3 Jul 2009 20:01:54 +0900, tadayoshi funaba <redmine@ruby-lang.org> writes:

|not a bug

Let me clarify.  As Complex numbers made built-in in 1.9, Tadayoshi
asked me to make Math functions work well with complex numbers, but I
did want to keep semantics taken libm functions.  So he separated
those functions into cmath.rb.  And required it from complex.rb to
make 1.8 compatibility.

So options are:

  * make those functions complex numbers aware from the beginning.
    lose libm semantics and compatibility a bit.
  * keep them as they are.  they are at least compatible with 1.8.
  * stop requiring cmath.rb from complex.rb.  lose compatibility.
    keep libm semantics.
  * something else.

Opinion?

							matz.