e$B0J2<$N$h$&$K!"e(B0 ** 2 e$B$Ge(B floating point exception
e$B$,5/$-$^$9!#e(B
% ./ruby -ve ‘0 ** 2’
ruby 1.8.6 (2007-07-14 patchlevel 5000) [i686-linux]
-e:1: warning: useless use of ** in void context
zsh: floating point exception ./ruby -ve ‘0 ** 2’