Iterative Sierpinski Triangle
In this iterative Sierpinski triangle, start and point P, and randomly move halfway to one of points A, B, or C. From this new point,
randomly move again halfway to one of the points A, B, or C.
Drag the slider to reveal or hide additional points (up to 700 points)
Drag point P to a different starting spot.
Drag points A, B, and C to different locations.