On Wed, 20 Jan 2016, Allin Cottrell wrote:

> Perhaps we should offer a prize for the first example of actual time-saving 
> (and/or improvement in accuracy) in sending a calculation of the sort that 
> might be required in gretl out to julia for computation.

Easy: just take Oleh's recursion example.

<hansl>
set echo off
set messages off

function scalar fib(scalar n)
     return n<2 ? n : fib(n-1) + fib(n-2)
end function

set stopwatch
eval fib(30)
native = $stopwatch

foreign language=julia
 	function fib(n)
 		if n<2
 			return n
 		else
 			return fib(n-1)+fib(n-2)
 		end
 	end
 	println(fib(30))
end foreign
julia = $stopwatch

print native julia
</hansl>

<output>
832040
832040

          native =  71.920384

           julia =  4.4912745
</output>

-------------------------------------------------------
   Riccardo (Jack) Lucchetti
   Dipartimento di Scienze Economiche e Sociali (DiSES)

   Università Politecnica delle Marche
   (formerly known as Università di Ancona)

   r.lucchetti@univpm.it
   http://www2.econ.univpm.it/servizi/hpp/lucchetti
-------------------------------------------------------