published on: 2014-09-25 00:27:26
infinity-in-my-eyes.tumblr.com/post/98347523069/
infinity-in-my-eyes.tumblr.com/post/98347560184/
Lemniscate of Bernoulli
infinity-in-my-eyes.tumblr.com/post/98347628874/
Lemniscate of Bernoulli
Lemniscate of Bernoulli