# 1 & 1.0

**URL:** <https://www.ruby-forum.com/t/1-1-0/136557>\
**Category:** Development\
**Created:** [May 3, 2008, 5:35pm UTC](https://www.ruby-forum.com/t/1-1-0/136557 "2008-05-03T17:35:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [May 3, 2008, 5:35pm UTC](https://www.ruby-forum.com/t/1-1-0/136557/1 "2008-05-03T17:35:40Z")

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e$B$5$l$?$3$H$J$s$G$7$g$&$+e(B?

% ./ruby -ve ‘p 1 & 1.0’  
ruby 1.9.0 (2008-05-02 revision 16277) [i686-linux]  
1

e$B:81&$r5U$K$9$k$H%(%i!\<$K$J$j$^$9!#e(B

% ./ruby -ve ‘p 1.0 & 1’  
ruby 1.9.0 (2008-05-02 revision 16277) [i686-linux]  
-e:1:in `<main>': undefined method`&’ for 1.0:Float (NoMethodError)