# Math Help - closed surface integral over a cube?

1. ## closed surface integral over a cube?

Hi
I am completely stuck as for part of a calculation I am programming I need to evaluate the integral:
\oint[exp(ig.r)]ds
So the closed surface imtergral for different geometries, I just want to do this over a simple cube but I don't know where to start.

Thanks
jbd

2. Originally Posted by jbd
[IMG]file:///C:/DOCUME%7E1/sheena/LOCALS%7E1/Temp/moz-screenshot.jpg[/IMG][IMG]file:///C:/DOCUME%7E1/sheena/LOCALS%7E1/Temp/moz-screenshot-1.jpg[/IMG]
Hi
I am completely stuck as for part of a calculation I am programming I need to evaluate the integral:
\oint[exp(ig.r)]ds
So the closed surface imtergral for different geometries, I just want to do this over a simple cube but I don't know where to start.

Thanks
jbd
Hi. you attached an image which cannot be seen..

3. sorry ignore that there wasn't suuposed to be an image there