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36 lines
684 B
OCaml
36 lines
684 B
OCaml
open Qptypes ;;
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type t = Strictly_positive_int.t;;
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let of_int = Strictly_positive_int.of_int ;;
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let to_int = Strictly_positive_int.to_int ;;
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let to_string m =
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match (to_int m) with
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| 1 -> "Singlet"
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| 2 -> "Doublet"
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| 3 -> "Triplet"
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| 4 -> "Quartet"
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| 5 -> "Quintet"
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| 6 -> "Sextet"
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| 7 -> "Septet"
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| 8 -> "Octet"
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| 9 -> "Nonet"
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| i -> Printf.sprintf "%d-et" i
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;;
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let of_alpha_beta a b =
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let a = Positive_int.to_int a
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and b = Positive_int.to_int b
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in
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assert (a >= b);
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of_int (1 + a - b)
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;;
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let to_alpha_beta ne m =
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let ne = Positive_int.to_int ne in
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let nb = (ne-(to_int m)+1)/2 in
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let na = ne - nb in
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assert (na >= nb) ;
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(na,nb)
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;;
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