Julia's rounding behavior will change in 0.4 (see JuliaLang/julia#8750 and JuliaLang/julia#9344), and I suspect it might throw off our indexing, since we do things like x_i = round(T, x) to figure out which polynomial we should evaluate. I think it might not be a problem, since ties will coincide with cell boundaries (and thus yield the same value regardless of which cell is used for evaluation), but I'm putting this up here to remember that it might blow up and that I should add tests for it some day.