On Thursday, December 6, 2012 8:41:20 AM UTC, Nicolas Desprès wrote: > > Hi, > > This is my first post on this mailing list and I would like to thanks the > authors and the community for this great tools. > > After a couple of weeks happily playing with Rails, I got bitten by a > strange behaviour drift between Rails and Ruby: > > Plain Ruby: > > $ irb > irb(main):001:0> 2 / 5 > => 2/5 > irb(main):003:0> 2.to_f / 5.to_f > => 0.4 > > That's not how it behaves for me. I get 2 / 5 == 0 in both cases. The ruby mathn library (part of the stdlib) does do this (and I really wish it wouldn't). Perhaps something in your irbrc pulls this in ?
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