Hi All,

>> Methods that appear for instances of a particular class may be defined
>> in ancestors of that class (or included modules, either of the class
>> or its ancestors), rather than than in the class itself. In this case
>> __id__ and __send__ are Kernel methods (probably documented under
>> Object, rather than Kernel) and denominator is, I think, defined in
>> Numeric.

I spent more time to find the solution for all methods. So I created one 
document which contains all the methods for that particular class.

Now it is available here

Fixnum:

http://raveendran.wordpress.com/2009/03/25/ruby-fixnum-documentation/

String:

http://raveendran.wordpress.com/2009/03/25/ruby-fixnum-documentation/


 Regards,
P.Raveendran
 http://raveendran.wordpress.com

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