| Line 10: | Line 10: | ||
<math>=\int_0^\infty t\,dt</math> | <math>=\int_0^\infty t\,dt</math> | ||
<math>=.5*t^2|_0^\infty</math> | <math>=.5*t^2|_0^\infty</math> | ||
| + | <math>=.5(\infty^2 - 0^2)</math> | ||
Revision as of 10:43, 21 June 2009
$ x(t) = \sqrt(t) $
$ x(t) = \cos(t) + \jmath\sin(t) $
$ E_\infty = \int_{-\infty}^\infty |x(t)|^2\,dt $
$ =\int_{-\infty}^\infty |\sqrt(t)|^2\,dt $ $ =\int_0^\infty t\,dt $ $ =.5*t^2|_0^\infty $ $ =.5(\infty^2 - 0^2) $
