Are you sure about that? Try x=999999999999999999. Best,
Tamas On Wed, Oct 28 2015, Paul Analyst <[email protected]> wrote: > Very smart, thx > Paul > W dniu 2015-10-26 o 23:18, David Epstein pisze: >> >> A one-liner, with type conversion to get an integer back: >> >> *convert(Int64,floor(x/10^(floor(log10(x)))))* >> >> >> On Saturday, October 24, 2015 at 11:40:03 AM UTC-4, Michele Zaffalon >> wrote: >> >> There is also the builtin >> http://docs.julialang.org/en/latest/stdlib/numbers/#Base.digits >> <http://docs.julialang.org/en/latest/stdlib/numbers/#Base.digits> >> >> On Sat, Oct 24, 2015 at 3:51 PM, Tamas Papp <[email protected] >> <javascript:>> wrote: >> >> 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] >> <javascript:>> 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 >> >>
