An Angle-Doubling Cardioid (old version)
- Author:
- Roy Wright
Below, the cardioid is shown, shifted left by unit. Any tangent line to this cardioid intersects the unit circle at two angles, one of which is always two times the other! Drag the red point to change the tangent. Inspired by Steven Strogatz.
CLICK HERE FOR A NEWER VERSION OF THIS DEMO