3 ms·
A very similar piece by V.I. Arnold[1]: http://pauli.uni-muenster.de/~munsteg/arnold.html http://pauli.uni-muenster.de/~munsteg/arnold.html [1]: http://en.wiki
by 4ad 12y ago
A very similar piece by V.I. Arnold[1]: http://pauli.uni-muenster.de/~munsteg/arnold.html http://pauli.uni-muenster.de/~munsteg/arnold.html
[1]: http://en.wikipedia.org/wiki/Vladimir_Arnold http://en.wikipedia.org/wiki/Vladimir_Arnold