I have a serious blind-spot with mathematics (but I keep trying)(adsbygoogle = window.adsbygoogle || []).push({});

Can someone help me with this.

I have a relation [tex]A = \mu_{0}/4\pi\int J/r \ dVol[/tex]

Which (apparently!) can be written [tex]\nabla^{2} A = - \mu_{0} J[/tex]

I know that [tex]\nabla^{2} A = 1/r \ \delta^{2} ( r A ) / \delta r^{2}[/tex]

which is the polar form of the Laplace operator

but I can't see how to use it to make the step.

The text refers to it as a Green's function but the explanations of that phrase look like a it would take me days to figure out what that means.

Is there a simple explanation?

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# Help with Green's function

Can you offer guidance or do you also need help?

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