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Topic: History of complex numbers (Read 9003 times) |
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Mickey1
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History of complex numbers
« on: Feb 10th, 2011, 7:56am » |
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Does anyone know how people understood for instance exp(ix) = cos(x)+i sin(x) from the beginning (=in the 18 hundreds). Was it by looking at the power series of 1+ix+(ix)^2/2 ... , and the corresponding series for cos(x) + i sin(x)? or did that come later?
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Mickey1
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Re: History of complex numbers
« Reply #2 on: Feb 14th, 2011, 12:15am » |
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Thank you for that. I note the formular came up 100 years earlier than I thougth.
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fizyka
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Physics&Informa tics <3
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Re: History of complex numbers
« Reply #3 on: Dec 30th, 2011, 3:27pm » |
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It's funny they just came up something and then much later they use it in somefields like electronics etc.
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fizyka , karta wzorów fizyka , książki z fizyki
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