(→Power) |
(→Energy) |
||
| Line 4: | Line 4: | ||
<br><br><br><math> E = \int_{1}^{2} |3x|^2\ dt \!</math> | <br><br><br><math> E = \int_{1}^{2} |3x|^2\ dt \!</math> | ||
| − | <br><br><math> E = [x]_{t=1}^{t=2} | + | <br><br><math> E = [x^3]_{t=1}^{t=2} </math> |
==Power== | ==Power== | ||
Revision as of 20:56, 4 September 2008
Energy
$ E = \int_{T2}^{T1} |x(t)|^2\ dt \! $
$ E = \int_{1}^{2} |3x|^2\ dt \! $
$ E = [x^3]_{t=1}^{t=2} $
Power
$ P =\frac{1}{t2-t1} \int_{t1}^{t2} |f(t)|^2\ dt \! $
$ P =\frac{1}{2-1} \int_{1}^{2} |3x|^2\ dt \! $
$ P = [x]_{t=1}^{t=2} = 1 $
