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 > > On Sat, Oct 24, 2015 at 3:51 PM, Tamas Papp <tkp...@gmail.com > <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 <paul.a...@mail.com <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 >> >> >
