- #1
zetafunction
- 391
- 0
where can i find a proof of the following identity ?
[tex] \sum_{n=0}^{\infty} (-x)^{n} \frac{c(n)}{n!} \sim c(x) +(1/2)c''(x)x+(1/6)c'''(x)x + (1/8)x^{2}c'''' (x) +++++ [/tex]
[tex] \sum_{n=0}^{\infty} (-x)^{n} \frac{c(n)}{n!} \sim c(x) +(1/2)c''(x)x+(1/6)c'''(x)x + (1/8)x^{2}c'''' (x) +++++ [/tex]