[<Measure>] type inch
[<Measure>] type ppi = px / inch // Pixel per inch.
-let μmInchRatio = 25.4e3<μm/inch>
-let mmInchRatio = 25.4<mm/inch>
+let μmPerInch = 25.4e3<μm/inch>
+let mmPerInch = 25.4<mm/inch>
-let μmToInch(x: float<μm>) : float<inch> = x / μmInchRatio
-let inchToμm(x: float<inch>) : float<μm> = x * μmInchRatio
+let μmToInch (x : float<μm>) : float<inch> = x / μmPerInch
+let inchToμm (x : float<inch>) : float<μm> = x * μmPerInch
-let mmToInch(x: float<mm>) : float<inch> = x / mmInchRatio
-let inchTomm(x: float<inch>) : float<mm> = x * mmInchRatio
+let mmToInch (x : float<mm>) : float<inch> = x / mmPerInch
+let inchTomm (x : float<inch>) : float<mm> = x * mmPerInch