* lib/matrix.rb: Add aliases for Vector#cross & dot
  patch by gogo tanaka [#10352]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48181 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/matrix.rb: Add Matrix#adjucate
  patch by gogo tanaka [#10056]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48182 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/matrix.rb: Generalize Vector#cross_product to arbitrary dimensions
  based on a patch by gogo tanaka [#10074]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48183 b2dd03c8-39d4-4d8f-98ff-823fe69b080e