published on: 2014-11-17 21:21:24
pspspsps
pspspsps
pspspsps
you're art
Lemniscate of Bernoulli
Lemniscate of Bernoulli
published on: 2014-11-17 21:21:24
pspspsps
pspspsps
pspspsps
you're art
Lemniscate of Bernoulli
Lemniscate of Bernoulli