The program contains: - construction of a sweep of the segmental elbow. You must enter the diameter, radius, elbow angle, and number of elements. - measurement of the elbow - finding the radius and angle between the ends of the elbow. To do this, you need to measure the diameter of the elbow, the length of the outer arc and the length of the inner arc. - cutting off the elbow - finding the length of the outer arc and the length of the inner arc of the elbow. To do this, you need to enter the dia