#http://www.2dcurves.com/sextic/sextick.html

vertices = 2000

t = from 0 to (2*PI)

w = tan(t)

r = sqrt([25 - 24*w*w] / [1 - w*w])

x = r*sin(t)
y = r*cos(t)

x = limit(x, -50, 50)
y = limit(y, -50, 50)