http://potan.livejournal.com/ ([identity profile] potan.livejournal.com) wrote in [personal profile] progenes 2012-12-04 12:44 pm (UTC)

Если сложение/умножение действительных чисел объяснять как преобразование прямой, то комплексные числа можно объяснить как преобразование плоскости.
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