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I set a example as | I set a example as | ||
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| + | <math>x(t)=6sin(2\pi t) + 4cos(4\pi t)</math> | ||
| + | |||
| + | <math>=6*\frac{e^{2j\pi t} - e^{-2j\pi t}}{2j}</math> | ||
Revision as of 17:56, 25 September 2008
Defines the Fourier series of a periodic ct signal as
$ x(t) = \sum_{k=-\infty}^\infty a_k e^{jkw_0t} $
I set a example as
$ x(t)=6sin(2\pi t) + 4cos(4\pi t) $
$ =6*\frac{e^{2j\pi t} - e^{-2j\pi t}}{2j} $
