Drag with the mouse. Left and right arrow keys to rotate, up and down arrow keys to scale. Above 10 iterations, it becomes pretty laggy. Still, pretty. Above 12 lags out my pretty good machine. If you press "0" you can manually type in a huge number. But beware, it will not automatically redraw, or respond to keys or mouse. Press "space" to redraw at large scale. Move and rotate at a smaller iteration, then amp up the iteration again. Here's a fun secret: you can press "i" and "o" to change the right angle beyond its normal limits.
This is the Dragon Curve, a fun fractal you too can draw at home. 1. Draw a line 2. Take what you have and draw it again, rotated ninety degree angle. Make sure both shapes end at the same spot. 3. Go to step 2. You can click and drag this one, rotate it with left/right arrow keys, and zoom with up/down arrow keys. You can also change what is considered a right angle.
