delta/ruby.git/math.c, branch ruby_2_4

merge revision(s) 57778,57779:

2017-03-12T16:29:47+00:00

	string.c: [DOC] fix doc formatting for String#==, #===
	math.c: more accuracy

	* math.c (math_log10): calculate log10(2) for more accuracy.
	  [ruby-core:79907] [Bug #13279]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: unused_obj

2016-11-19T01:55:34+00:00

* math.c (exp1, exp2): use immediate 0 instead of rb_mMath, which
  is never used.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56833 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: remove needless ifdef clause

2016-11-16T04:25:37+00:00

* math.c (ifdef M_PI): M_PI is eventually defined in missing.h even if math.h
  doesn't supply it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56810 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

[DOC] replace Fixnum with Integer [ci skip]

2016-10-26T06:11:23+00:00

* numeric.c: [DOC] update document for Integer class.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: faster tanh

2016-08-02T12:42:42+00:00

* math.c (tanh): make faster by the extract form if three
  hyperbolic functions are unavailable.  [Feature #12647]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: tanh overflow

2016-08-02T12:40:51+00:00

* math.c (tanh): check overflows, and return +-1.0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (_USE_MATH_DEFINES): it must be set before including internal.h

2016-07-13T07:03:23+00:00

  because internal.h includes ruby.h, ruby.h includes win32.h, and
  win32.h includes system's math.h.
  this change is to get rid of a compiler warning (redefinition of
  a macro) introduced at r55641.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55662 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

fix type

2016-07-13T05:47:48+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55659 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (rb_math_sqrt): r55646 must use f_signbit.

2016-07-13T05:29:30+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55657 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: Complex sqrt

2016-07-12T14:13:46+00:00

* math.c (rb_math_sqrt): [EXPERIMENTAL] move Complex sqrt support
  from mathn.rb.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e