I built an interactive unit circle

I got tired of memorising trigonometry by rote so I built an interactive unit circle. This allows me to drag a point around the circle and watch sine, cosine and tangent update in real time.

The tutorial button will walk you through how all six trig functions are derived from the unit circle.

My hope is that by internalising the unit circle, I won't have to remmeber anything by rote anymore.