(** Signature for matrices built on the {!Basis.t} *) open Gaussian open Linear_algebra type t = (Basis.t, Basis.t) Matrix.t val of_basis : Basis.t -> t (** Build from a {!Basis.t}. *) val of_basis_pair : Basis.t -> Basis.t -> t (** Build from a pair of {!Basis.t}. *)