From: Yukihiro Matsumoto Date: 2010-12-18T02:35:57+09:00 Subject: Re: Integer/Fixnum/Bignum are "immutable"? Hi, In message "Re: Integer/Fixnum/Bignum are "immutable"?" on Sat, 18 Dec 2010 02:31:50 +0900, Kedar Mhaswade writes: |Sorry. Does that mean my understanding is not correct or no, there is no |way? |I meant value of the Integer to be the numeric value it (the actual |object, not its reference) represents. If your definition of the "value" of an Integer is its numeric value, you don't have any way to change. Note that in Ruby even a fixnum can have its own instance variables. matz.