(→Energy) |
(→Power) |
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== Power == | == Power == | ||
| + | <font size="4"> | ||
<math>f(t)=2cos(t)</math> | <math>f(t)=2cos(t)</math> | ||
| + | |||
<math>P = \int_{t_1}^{t_2}\!|f(t)|^2\ dt</math> | <math>P = \int_{t_1}^{t_2}\!|f(t)|^2\ dt</math> | ||
| + | |||
| + | </font> | ||
Revision as of 14:46, 4 September 2008
Energy
$ f(t)=2cos(t) $
$ E = {1\over(t2-t1)}\int_{t_1}^{t_2}\!|f(t)|^2 dt $
Power
$ f(t)=2cos(t) $
$ P = \int_{t_1}^{t_2}\!|f(t)|^2\ dt $
