A time to survive they really time it doesn't matter for the long lot like this course okay re: so I want to take a minute to tell you little more about the you serve this complex numbers do it for a lot of reasonsVigoraflo I don't know what field you guys are it you could be in art history just don't know and complex numbers and the relevant to what you do okay just don't know but I'm CD's spinning engineering electrical engineering mechanical engineering it's all about complex numbers because everybody rate differential .

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