GF
1. group lemniscate of Bernoulli curve parametric equations described: x=rsint * sqr(2cos2t) y=±rcost * sqr(2cos2t) 2. group lemniscate of Bernoulli curve parametric equations described: x=±rcost * sqr(2cos2t) y=rsint * sqr(2cos2t) 0<=r<=125 Music: Jacek Darabasz-Soldier of Fortune -_acustic (cover) http://scratch.mit.edu/projects/leszpio/2845958