Units.MetersTypeMeters, with conversion to and from other units.
The module uses float internally, but this can be hidden by forcing its type to be MetersType (without the with type annotation.
val to_km : t -> floatTo and from kilometers.
val of_km : float -> tval to_mile : t -> floatTo and from the international mile.
val of_mile : float -> tval to_yard : t -> floatTo and from the international yard.
val of_yard : float -> tval to_ft : t -> floatTo and from the international foot.
val of_ft : float -> t