# Thread: do you know the function for this taylor series?

1. ## do you know the function for this taylor series?

hi all,

I have the function given by taylor series $\sum_{k=0}^\infty \frac{(-1)^k k!}{(2k-1)!} x^k$

anyone knows what this function could be? (or how it can be reduced to any known function)

help would be greatly appreciated...

2. great, many thanks!

Dawson integral apparently (up to some rubbish)