- #1

BarringtonT

- 9

- 0

__Interval of Convergence__" for a power series representation of a Function f(x).

But I Still don't know what that "

__Interval of Convergence__" does for me other than I can choose a number in it and plug it in to the series.

For Example e[itex]^{x}[/itex]=[itex]\sum^{∞}_{n=0} \frac{x^n}{n!}[/itex] ;when a=0;

my "

__Interval of Convergence__" is (-∞,∞). SO now lets say i take the # 1 from my "

__Interval of Convergence__" and place it in the series representation of e^x.

Then i would get back some answer , but what does that answer mean? besides the fact that I got an answer.