To celebrate its 550th anniversary in 2008, Magdalen College at Oxford University commissioned the English artist Mark Willinger to create a sculpture called Y that has a decidedly recursive...

To celebrate its 550th anniversary in 2008, Magdalen College at Oxford University commissioned the English artist Mark Willinger to create a sculpture called Y that has a decidedly recursive structure. A photograph of

The trunk branches at the top to form two lines that veer off at an angle, as shown:

These branches themselves split to form new branches, which split to form new ones, and so on. Write a program that uses the graphics library to draw the fractal tree in Willinger’s sculpture. If you carry this process on to the eighth-order fractal, you get the image on the right of Figure 8-7.