[julia-users] product of Int64 and Float64 is Int64

[Michele Zaffalon]

I am confused by the type of the result of `1.*80`, which is `Int64`, 
despite the fact that `1.` is `Float64`, and that `Float64(1)*80` is a 
`Float64`:

julia> typeof(1.), typeof(80), typeof(1.*80), typeof(Float64(1.)*80)
(Float64,Int64,Int64,Float64)

Does it have to do with the fact that both 1 and 80 have an exact Float64 
representation?

julia> bits(1.)
"0011111111110000000000000000000000000000000000000000000000000000"

julia> bits(80.)
"0100000001010100000000000000000000000000000000000000000000000000"


Thank you,
michele