On Dec 28, 2008, at 22:58 , Jun Young Kim wrote:

> irb(main):008:0> a.send('!=', 2)
> NoMethodError: undefined method `!=' for 1:Fixnum
> 	from (irb):8:in `send'
> 	from (irb):8
> 	from :0

there is no '!=' method, there is only '=='. you should send '==' and  
not/! the result:

! a.send('==', 2)