http://vit_r.livejournal.com/ ([identity profile] vit-r.livejournal.com) wrote in [personal profile] vit_r 2009-05-22 07:50 pm (UTC)

Сложение векторов - тригонометрический, а не арифметический процесс.
А что там Перельман насчитал, не суть.
(11 comments)

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