published on: 2014-09-09 16:52:32
pspspsps
Nothing is in vain.
Nothing is in vain.
Nothing is in vain.
Lemniscate of Bernoulli
Lemniscate of Bernoulli
published on: 2014-09-09 16:52:32
pspspsps
Nothing is in vain.
Nothing is in vain.
Nothing is in vain.
Lemniscate of Bernoulli
Lemniscate of Bernoulli