Can one let me know about the functional equation of the alternating zeta function similar to the well known for the rieman function.
Since one has $$\sum_{n=1}^{\infty} \frac{(1)^{n1}}{n^s} = (1 2^{1s}) \zeta (s)$$ you get a Functional equation directly from the one for $\zeta$. Note: This is function is also called Dirichlet eta function ; the linked Wikipedia page also has the equation spelled out. 

