Recent content by Stole

Hi, I would like to calculate the following integration: \oint_{\Sigma}f(x,y)g(x,y)\mathbf{n}\cdot d\mathbf{s} where g(x,y)=0 on \Sigma, and \mathbf{n} is the outward pointing unit normal field of the boundary \Sigma. In this case does the integral equals to 0? Thanks!