Matrix.rb没有这样的文件Ruby 1.9.2

Question

我安装了ruby 1.9.2:

alykhan@helium:~$ ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]

但是当我尝试require 'Matrix'我收到错误时,如下所示:

alykhan@helium:~$ irb
irb(main):001:0> require 'Matrix'
LoadError: no such file to load -- Matrix
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from (irb):1
    from /usr/local/ruby/bin/irb:12:in `<main>'
irb(main):002:0>

我是否需要安装特定的gem才能获得Matrix lib？

Answer 1

使用小写:

require 'matrix'