public QuantityDimension Invert() { QuantityDimension qd = new QuantityDimension(); qd.Mass = Mass.Invert(); qd.Length = Length.Invert(); qd.Time = Time.Invert(); qd.ElectricCurrent = ElectricCurrent.Invert(); qd.Temperature = Temperature.Invert(); qd.AmountOfSubstance = AmountOfSubstance.Invert(); qd.LuminousIntensity = LuminousIntensity.Invert(); qd.Currency = Currency.Invert(); qd.Digital = Digital.Invert(); return(qd); }