kodingwindow@kw:~$ julia
...
julia> 10+20
30

julia> 10-20
-10

julia> 10*20
200

julia> 10/20
0.5

julia> 2^10
1024

julia> mod(-7,4)
1

julia> mod(7,4)
3

julia> rem(-7,4)
-3

julia> rem(7,4)
3

julia> div(-7,4)
-1

julia> div(7,4)
1

julia> divrem(-7,4)
(-1, -3)

julia> divrem(7,4)
(1, 3)

julia> 2//3
2//3

julia> numerator(2//3)
2

julia> denominator(2//3)
3

julia> 10//30
1//3

julia> Inf
Inf

julia> NaN
NaN

julia> Inf*0
NaN

julia> gcd(18,21)
3

julia> lcm(24,36)
72

julia> complex(4+5im)+complex(2+6im)
6 + 11im
        
julia> c1=4+5im
4 + 5im

julia> c2=2+6im
2 + 6im

julia> c1+c2
6 + 11im

julia> c1-c2
2 - 1im

julia> c1*c2
-22 + 34im

julia> c1/c2
0.95 - 0.35000000000000003im

julia> c1^2
-9 + 40im

julia> 10(c1)
40 + 50im

julia> round(2.3)
2.0

julia> round(2.8)
3.0

julia> round(-2.3)
-2.0

julia> round(-2.8)
-3.0
julia> floor(2.3)
2.0

julia> floor(2.8)
2.0

julia> floor(-2.3)
-3.0

julia> floor(-2.8)
-3.0
julia> ceil(2.3)
3.0

julia> ceil(2.8)
3.0

julia> ceil(-2.3)
-2.0

julia> ceil(-2.8)
-2.0
julia> trunc(2.3)
2.0

julia> trunc(2.8)
2.0

julia> trunc(-2.3)
-2.0

julia> trunc(-2.8)
-2.0  

julia> typeof(2)
Int64

julia> typeof(2.3)
Float64

julia> typeof(-1)
Int64

julia> typeof(0x02)
UInt8

julia> typeof(pi)
Irrational{:π}

julia> typeof(Inf)
Float64

julia> typeof(NaN)
Float64