* lib/matrix/eigenvalue_decomposition: Backport bugfix of Jama 1.0.3
  [rubyspec:df87040be371]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38803 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-01-14

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38804 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* regparse.c (add_ctype_to_cc): don't check dup warn on adding
  negative ctype to cclass. [Bug #7471] [ruby-core:50344]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38805 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[rdoc] expalin kcode argument of Regexp.new

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38806 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/matrix/lup_decomposition: Fix bugs with LUP Decomposition of
  rectangular matrices. [rubyspec:ba849801a85]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38807 b2dd03c8-39d4-4d8f-98ff-823fe69b080e