Первая часть: www.youtube.com/watch?v=EMBQn-tfyxQ
Оригинал: www.youtube.com/watch?v=L0Vj_7Y2-xY

Прыжки Виета, википедия: bit.ly/2JUdgD1

NUMBERPHILE
Website: www.numberphile.com/
Numberphile on Facebook: www.facebook.com/numberphile
Numberphile tweets: twitter.com/numberphile
Videos by Brady Haran