Julia does not try to hide the complexities of floating-point representations, so this is expected. There's a brief section in the manual [1] which lists some references on this topic--I personally recommend reading "What Every Computer Scientist Should Know About Floating-Point Arithmetic <http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.102.244&rep=rep1&type=pdf>", but the other references are good, too.
[1] http://julia.readthedocs.org/en/latest/manual/integers-and-floating-point-numbers/#background-and-references <http://julia.readthedocs.org/en/latest/manual/integers-and-floating-point-numbers/#background-and-references> On Thursday, March 12, 2015 at 3:40:45 PM UTC-5, Hanrong Chen wrote: > > julia> 1-0.8 > 0.19999999999999996 > > Is this a bug? >
