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August 19th, 2010, 04:39 PM   #1
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surface integral

Hi;

Let S be a sphere of radius r and let p be a fixed point inside or outside the sphere but not on it.
Show that



gives

if p is inside S
if p is outside S

Thanks...
kriko is offline  
 
August 21st, 2010, 11:55 AM   #2
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Re: surface integral

Hi,

I am sorry, I would like to help you but you should learn first to exactly formulate your problem.
For example it is completely nonsense that p is a point () and then you write something like where you use in the integrand. You are talking about a "sphere" which can be defined in any dimension, definition where ,. What is D? I believe I know what you want but please help with a correct definition.
A hint in the forefront: Gauß.

Regards,
Jens
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