# Math Help - product of power series

1. ## product of power series

can anyone give me a detailed but clear description of how to multiply power series'?

2. Originally Posted by acshell
can anyone give me a detailed but clear description of how to multiply power series'?
Look up Cauchy Product.

RonL

3. It has to be more than that.
Two power series need to be absolutely convergent on some open interval.
(Becuas otherwise you are assuming rearrangement is possible).

4. Originally Posted by ThePerfectHacker
It has to be more than that.
Two power series need to be absolutely convergent on some open interval.
(Becuas otherwise you are assuming rearrangement is possible).
Scroll down the page to see what it says

"Convergence and Merten's theorems"

RonL