25 lines
507 B
OCaml
25 lines
507 B
OCaml
let rec fact n =
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if n < 1 then 1
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else n * (fact (n-1))
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let x = fact 5;;
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(*
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The double semicolon is needed above.
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This may be related:
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http://ocamlverse.net/content/faq_if_semicolon.html
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*)
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Printf.printf "%d" x
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(* 120 *)
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(*************************************************)
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(* https://github.com/wiredsister/example-ocaml/blob/master/examples/factorial.ml *)
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let rec fact2 = function
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| 0 -> 1
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| n when n>1 -> n * (fact2 (n-1))
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| _ -> 0;;
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Printf.printf "%d" (fact 6)
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(* 720 *)
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