An Explanation of Green's Function

Bayes The Engineer Join Date: Feb 2005 Location: Albany, New York Posts: 5170 Good Answers: 129	An Explanation of Green's Function 03/07/2005 9:12 AM
	I'm taking an Electrodynamics course right now and we're using Green's Functions to describe different charge systems. I can do the math, or at least copy the math my professor did in class, but I'm having a difficult time figuring out why Green's Functions are useful. If anyone out there is familair with this subject, I'd appreciate your interpretation. I just would like to have a more intuitive feel for this. Why do we use it? What does it do for us? Please help if you can.
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Steve Power-User Join Date: Jan 2005 Posts: 390 Good Answers: 8	#1 Green's functions 03/10/2005 12:52 PM
	Wikipedia has a nice, succinct explanation of Green's function as the solution to inhomogeneous partial differential equations http://en.wikipedia.org/wiki/Green's_function. FYI - There's also a thumbnail overview of quantum electrodynamics http://en.wikipedia.org/wiki/Quantum_electrodynami cs Now I remember how much all this stuff made my brain hurt ! :-(
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