4
我已經安裝了Ruby 1.9.2:Matrix.rb沒有這樣的文件紅寶石1.9.2
[email protected]:~$ ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]
但在IRB當我嘗試require 'Matrix'
我得到一個錯誤,如下圖所示:
[email protected]:~$ 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>
我是否需要安裝特定的Gem來獲取Matrix庫?