Step can't be 0 by (0..10).step(0.9)

e$B0J2<$N$h$&$K!"e(B(0…10).step(0.9) {|x| p x }
e$B$,Nc30$K$J$j$^$9!#e(B

% ./ruby -ve ‘(0…10).step(0.9) {|x| p x }’
ruby 1.9.0 (2008-05-01 revision 16250) [i686-linux]
-e:1:in step': step can't be 0 (ArgumentError) from -e:1:in

e$B$7$+$7e(B 1.1 e$B$K$9$k$HF0$/$N$G!"e(B0.9
e$B$N5sF0$O0U?^$;$6$k$b$N$J$se(B
e$B$8$c$J$$$G$7$g$&$+!#e(B

% ./ruby -ve ‘(0…10).step(1.1) {|x| p x }’
ruby 1.9.0 (2008-05-01 revision 16250) [i686-linux]
0
1.1
2.2
3.3
4.4
5.5
6.6
7.7
8.8
9.9

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