module Unit:sig
..end
type'a
quantity =float * 'a option
typeangle =
[ `Deg | `Grad | `Rad ] quantity
typelength =
[ `Cm | `Em | `Ex | `In | `Mm | `Pc | `Percent | `Pt | `Px ]
quantity
typetime =
[ `Ms | `S ] quantity
typefrequency =
[ `Hz | `KHz ] quantity