I was testing some of the code in Miclael Fogus & Chris Houser's The Joy of Clojure and found this: Clojure 1.4.0 user=> (let [a (+ 0.1 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M)] (println (class a)) a) java.lang.Double 0.9999999999999999 user=> (let [b (+ 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1M 0.1)] (println (class b)) b) java.lang.Double 1.0 user=> Can anyone help by explaining why a and b are not equal? I figure it has something to do with the reduce1 function. Thanks! -Kevin
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