From: KONTRA Gergely <kgergely@...>
Date: 2003-05-13T21:39:34+09:00
Subject: Ruby OO? sin method? puts method?

Hi!

Ruby is said to be pure OO language.
The often referred example is the abs method
irb(main):001:0> RUBY_VERSION
=> "1.6.8"
irb(main):002:0> 1.abs
=> 1
irb(main):003:0> 0.5.sin
NameError: undefined method `sin' for 0.5:Float
        from (irb):3
irb(main):004:0> Math.sin(0.5)
=> 0.4794255386
irb(main):005:0>
irb(main):005:0> "asdf".puts
NameError: private method `puts' called for "asdf":String
        from (irb):5

Than why not sin is a method?
And puts?


Gergo
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