private void AddUnitDefinition(Enumerations.Units unit, UnitTypes[] unitTypes, Func <double, double> formulaConvert, Func <double, double> formulaConvertBack) => Units.Add(new Unit(unit, unitTypes, formulaConvert, formulaConvertBack));
private void AddSIUnitDefinition(Enumerations.Units unit, UnitTypes[] unitTypes) => Units.Add(new SIUnit(unit, unitTypes));