- #1

corey2014

- 22

- 0

## Homework Statement

let f[k]=1/k!, then let fsub2[k]=f[k] convoluted with f[k]

what is a simple formula for fsubm[k]?

## Homework Equations

f[k] convoluted with f[k] = summation from negative infinity to infinity of 1/m! * 1/(n-m)!

## The Attempt at a Solution

I tried a base case, but now I feel like this should be e^x, because the rest of the terms will drop out? Please Help I don't really know where to start...