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| − | <math>= \int_{-N}^{N} \left | \x \right |\, dx | + | <math>= \int_{-N}^{N} \left | \x(t)^2 \right |\, dx |
f(x) \,\!</math> | f(x) \,\!</math> | ||
Revision as of 18:48, 5 September 2008
$ = \int_{-N}^{N} \left | \x(t)^2 \right |\, dx f(x) \,\! $ $ = \sum_{n=0}^\inf a_n x^n $
$ = \left | \frac{a}{b} \right | $
