### Rotate Point Around Point (Golfed)

rot = (

cx, cy, X, Y, ang,

cos = Math.cos(-ang),

sin = Math.sin(-ang),

x = cos * (X - cx) + sin * (Y - cy) + cx,

y = cos * (Y - cy) - sin * (X - cx) + cy) => ({ x, y })

Rotate one point around another… I like to use something like this when speed-coding and golfing…