Is round(x) broken?
Julia's standard library includes a host of mathematical functions, in addition to the standard operators. Complex numbers are also supported, using the built-in im unit:
round(pi)
lcm(54, 392, 232) # least common multiple
sqrt(square(100))
e^(pi * im)
log(e ^ 2) + log10(100)
When you're ready, type "next" to continue
julia> round(pi)
no method round(MathConst{:π},)