cambia_base(15,16)
function cambia_base(n,b)
    basecad = '0123456789abcdef';
    if (n>=b)
        cambia_base(idivide(int64(n),int64(b)),b);
    end
    fprintf(basecad(mod(n,b)+1))
    disp(' ')
end

f 

Published with MATLAB® R2017a