mirror of https://gitlab.com/scemama/QCaml.git
59 lines
1.2 KiB
OCaml
59 lines
1.2 KiB
OCaml
(** Powers *)
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(* Contains powers of $x$, $y$ and $z$ describing the polynomials in
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* atomic basis sets.
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*)
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(** Type *)
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type t = private {
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x : int ;
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y : int ;
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z : int ;
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tot : int ; (* ~tot~ always contains ~x+y+z~. *)
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}
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(** Conversions *)
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val of_int_tuple : int * int * int -> t
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(** Powers.of_int_tuple (2,3,1);;
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* - : Powers.t = x^2 + y^3 + z^1
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*)
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val to_int_tuple : t -> int * int * int
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(** Powers.(to_int_tuple (of_int_tuple (2,3,1)));;
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* - : int * int * int = (2, 3, 1)
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*)
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(** Operations *)
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val get : Coordinate.axis -> t -> int
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(** Returns the value of the power for $x$, $y$ or $z$.
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*
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* Powers.get Coordinate.Y (Powers.of_int_tuple (2,3,1));;
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* - : int = 3
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*
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*)
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val incr : Coordinate.axis -> t -> t
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(** Returns a new ~Powers.t~ with the power on the given axis incremented.
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*
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* Powers.incr Coordinate.Y (Powers.of_int_tuple (2,3,1));;
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* - : Powers.t = x^2 + y^4 + z^1
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*)
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val decr : Coordinate.axis -> t -> t
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(** Returns a new ~Powers.t~ with the power on the given axis decremented.
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* As opposed to ~of_int_tuple~, the values may become negative.
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*
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* Powers.decr Coordinate.Y (Powers.of_int_tuple (2,3,1));;
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* - : Powers.t = x^2 + y^2 + z^1
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*)
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(** Printers *)
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val pp : Format.formatter -> t -> unit
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