TITLE: Contour integration and wolfram
QUESTION [17 upvotes]: I am not sure if this is the right site to ask this question, but here it is:
Does Wolfram Alpha do contour integrals? If so how might I access that feature. Also, is there an online manual for Wolfram? 
Many thanks.

REPLY [8 votes]: Here are two ways the integral 
$$\int_C \frac{d z}{z},$$
where $C$ is the unit circle traversed counterclockwise, can be handled:
(1) using the definition of a complex line integral;
(2) using the residue theorem.
I have found all I need to know about Wolfram Alpha here. 
Here are some pages relevant to contour integration.