; Draws n ellipses rotated around a common focus and a circle ; surrounding them all. ; nell ellip3.nll START 3 | nellsvg 5.7 5.7 in 0.02 1 > ellip3.svg n = 48; a = 2*pi/n; rx = 1.5; ry = 3/4; c = sqrt(rx^2-ry^2); E1 : [M(c) E(rx,ry)] T(a); START : P(rx+c+0.04,rx+c+0.04) S(E1,n) C(rx+c);