$ = \int_{-N}^{N} e^x\, dx f(x) \,\! $ $ = \sum_{n=0}^\inf a_n x^n $
$ = \left | \frac{a}{b} \right \vert \left \Vert \right \| $
$ = \int_{-N}^{N} e^x\, dx f(x) \,\! $ $ = \sum_{n=0}^\inf a_n x^n $
$ = \left | \frac{a}{b} \right \vert \left \Vert \right \| $