Homework Statement
Compute the contour integral I around the following curve $\Gamma$:
$ I = \int_\Gamma \dfraq{dz}{z^2 +1} $
see picture:
http://dl.dropbox.com/u/26643017/Screen%20Shot%202012-01-07%20at%2010.39.58.png Homework EquationsThe Attempt at a Solution
$\Gamma$ is an open curve...