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Physics
Classical Physics
Help with Levi-Civita manipulation
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[QUOTE="jambaugh, post: 6447862, member: 76054"] Apply the product rule, and use Kronecker delta to express partial of ##x_m##: [tex] \partial_i \left[ x_m J_{2i} \frac{1}{|\vec{x}-\vec{x}'|}\right] = \delta_{m i} J_{2i}\frac{1}{|\vec{x}-\vec{x}'|} + x_m J_{2i}\partial_i \left[ \frac{1}{|\vec{x}-\vec{x}'|}\right][/tex] where ##\partial_i x_j = \delta_{ij}## and ##\delta_{ij} = 1## if ##i=j## otherwise ##=0##. You should then be able to resolve the result in vector form. [/QUOTE]
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Help with Levi-Civita manipulation
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