prov:value
| - E(x???,y???,z???)=???14?????S[i????(n??H)G+(n??E)?????G+(n???E)???G]da, (2)where (x???, y???, z???) is an interior point of S, G = exp(ikr)/r is the free space Green???s function, r is the distance between (x???, y???, z???) and a point on S, da is a differential surface element, n is an outward facing surface normal and E and H appearing inside the integral are the electric and magnetic fields on
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