]> Le Mardi 3 Décembre 2002 08:40, Scott J. a écrit : > Hi, Hello, > is it possible to implement in OCamel arbitrary large integers as > in Dolphin smalltalk e.g. where e.g. factorial 10000 is evaluated > very fast Yes, it's possible : just use the nums library (documented in the documentation at http://caml.inria.fr/ocaml/htmlman/manual036.html). An example : #load "nums.cma";; (* directly with Big_int ... *) open Big_int let fact n = let rec fact_ acu p = if p = zero_big_int then acu else fact_ (mult_big_int acu p) (sub_big_int p unit_big_int) in fact_ unit_big_int n;; string_of_big_int (fact (big_int_of_int 10000));; (* more convenient with Num. *) open Num let n_ = num_of_int let big_fact n = let rec fact_ acu p = if p = n_ 0 then acu else fact_ (acu */ p) (p -/ (n_ 1)) in fact_ (n_ 1) n;; string_of_num (big_fact (n_ 10000)) -- Yann Regis-Gianas ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners