What version are you running? As far as I know, .3 isn't even a valid representation for a number -- you'd have to write it as 0.3. So I'm not sure where you're running that code snippet such that you don't get an immediate error.
On 1.5.1: => (+ 0.3 1.7) 2.0 That said, I think most programmers know that floating point representations of numbers are inexact. That's why, if you care about exactness, you should write: => (+ 0.3M 1.7M) 2.0M On Tue, Apr 9, 2013 at 1:53 AM, Cedric Greevey <cgree...@gmail.com> wrote: > This may look mildly surprising, and suggests one more thing *not* to ever > do in production code: > > user=> (+ .3 1.7) > 2.1 > user=> > > :) > > Shouldn't be hard to figure out how to put a repl in a state where that > expression will evaluate to that result. I'm sure mathematicians everywhere > are deeply offended by the clojure reader now. :) > > -- > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
