– . . . . . .. .. . . .. ... . . . .. . . . ... . . . . . . .. . ... . ..... . . .. . . . . . . . . .. . . . . . . . . . . . . Sequential Engineering is often called “across the wall” method. Figure illustrates . . . . . . . ... . .. . .. . .. . . .... .. . . . . . . . . . . . . . . . .. . . . . . . – . . . . . . .. . . . . .. . . . . . . . . . . . . . . . . . . .. . . . “points or dots” on the screen. Therefore, it is called as a point plotting device. .. .. . . . . . . . . . . . . . . . . .. .. . . . . .. P1 (40, 20) can be seen being rotated about the origin through an angle, θ = .. .. .. . . . . . . .. .. . . . .. . . . . . . . . . .