// Add a Point4D to a Point4D using the static Add method.
                       // Returns a Point4D.

                       Point4D point1 = new Point4D(10, 5, 1, 4);
                       Point4D point2 = new Point4D(15, 40, 60, 75);
                       Point4D pointResult = new Point4D();

                       pointResult = Point4D.Add(point1, point2);
                       // pointResult is equal to (25, 45, 61, 79)

                       // Displaying Results
                       syntaxString = "pointResult = Point4D.Add(point1, point2);";
                       resultType = "Point4D";
                       operationString = "Adding a 3D Point and a 3D Vector";
                       ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);