A trivial (but not necessarily the fastest) solution is

function firstdigit(i,base=10)
    while (i >= base)
        i = div(i,base)
    end
    i
end

Best,

Tamas

On Sat, Oct 24 2015, paul analyst <[email protected]> wrote:

> How to get first number from Int64
>
> julia> lista[3]
> 464
>
> julia> eltype(lista[3])
> Int64
>
> julia> length(lista[3])
> 1
>
> julia> lista[3][]
> 464
>
> julia> lista[3][1]
>
> I need the first "4" 
> Paul

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