| Line 4: | Line 4: | ||
== Coefficients == | == Coefficients == | ||
| − | <math>cos({\frac{2\pi t}{3}}) = \frac{1}{2}e^ | + | <math>cos({\frac{2\pi t}{3}}) = \frac{1}{2}e^{\frac{j2\pi t}{3}} + \frac{1}{2}e^{\frac{-j2\pi t}{3}}</math> |
Revision as of 16:11, 21 September 2008
CT signal
$ x(t) = 2 + cos({\frac{2\pi t}{3}})+ 4sin({\frac{5\pi t}{3}})\, $
Coefficients
$ cos({\frac{2\pi t}{3}}) = \frac{1}{2}e^{\frac{j2\pi t}{3}} + \frac{1}{2}e^{\frac{-j2\pi t}{3}} $
