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QCaml/Utils/Constants.mli
2018-02-24 23:57:38 +01:00

27 lines
531 B
OCaml

val epsilon : float
(** Value below which a float is considered null. Default is 10{^-20}. *)
val integrals_cutoff : float
(** Cutoff value for integrals. Default is 10{^-15}. *)
val pi : float
(** pi = 3.141_592_653_589_793_12 *)
val sq_pi : float
(** [sqrt pi] *)
val sq_pi_over_two : float
(** [(sqrt pi) /. 2.] *)
val pi_inv : float
(** [ 1. /. pi ] *)
val two_over_sq_pi : float
(** [ 2. /. (sqrt pi) ] *)
val a0 : float
(** Bohr radius : a{_0} = 0.529_177_210_671_2 Angstrom *)
val a0_inv : float
(** [ 1. /. a0 ] *)