ruby.git/math.c, branch ruby_1_9_2

* array.c: Documentation: change => in call-seq to ->.

2010-05-17T21:50:00+00:00

            Harmonize "#=>" in examples. [ruby-core:30206]

* bignum.c: ditto

* class.c: ditto

* compar.c: ditto

* cont.c: ditto

* dir.c: ditto

* encoding.c: ditto

* enum.c: ditto

* enumerator.c: ditto

* error.c: ditto

* eval.c: ditto

* file.c: ditto

* gc.c: ditto

* hash.c: ditto

* io.c: ditto

* load.c: ditto

* marshal.c: ditto

* math.c: ditto

* numeric.c: ditto

* object.c: ditto

* pack.c: ditto

* proc.c: ditto

* process.c: ditto

* random.c: ditto

* range.c: ditto

* re.c: ditto

* ruby.c: ditto

* signal.c: ditto

* sprintf.c: ditto

* string.c: ditto

* struct.c: ditto

* thread.c: ditto

* time.c: ditto

* transcode.c: ditto

* variable.c: ditto

* vm_eval.c: ditto

* vm_method.c: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27870 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* error.c: RDoc for subclasses of Exception. [ruby-core:28394]

2010-05-08T04:58:32+00:00

* cont.c: ditto

* enumerator.c: ditto

* io.c: ditto

* math.c: ditto

* numeric.c: ditto

* proc.c: ditto

* re.c: ditto

* thread.c: ditto

* transcode.c: ditto. Thanks to Run Paint for some of the documentation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27673 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c: Math::DomainError < StandardException [ruby-core:29855]

2010-04-30T13:46:38+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (rb_eMathDomainError): new exception class for representing mathematical domain error instead of Errno::EDOM.

2010-02-28T10:08:22+00:00

* math.c (domain_check, infinity_check): removed, no longer needed.
* math.c (math_atan2, math_acos, math_asin, math_acosh, math_atanh, math_log, math_log2, math_log10, math_sqrt, math_gamma, math_lgamma): mathematical domain errors are checked and raised before calling libm's functions.
* test/ruby/test_math.rb: updated for changes of maht.c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (math_atanh): raise ERANGE without calling atanh if absolute

2010-02-18T13:39:11+00:00

  value is 1 to achieve platform-independent math.  [ruby-core:28219]

* math.c (math_lgamma): return [Infinity, 1] without calling lgamma_r
  if argument is infinity or -infinity.  [ruby-core:28219]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26707 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (math_lgamma): initialize sign because

2010-02-06T18:02:59+00:00

  lgamma(NaN) doesn't set the sign in OpenSolaris.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26608 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (domain_check): ignore errno if y is inf.

2010-01-25T02:51:16+00:00

  r26335 is because NetBSD 5.0's asin and acos returns
  0.0 with errno EDOM. But it breaks Linux whose gamma returns inf
  with errno ERANGE on.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26397 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (domain_check): check errno first.

2010-01-17T10:24:27+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26335 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

rdoc update.

2009-12-27T01:37:23+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26183 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (math_gamma): fix incorrect comparison expression.

2009-11-18T03:06:32+00:00

  see also [ruby-dev:39709] [Bug #2381]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25836 b2dd03c8-39d4-4d8f-98ff-823fe69b080e