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seen Mar 20 '13 at 17:36

Oct
16
awarded  Necromancer
Jan
11
comment Transforming a sum into an integral
Hi...there are several exponential in the numerator! When we trasform in polar coordinates they gives term like $cos^2(\theta)$
Jan
8
comment Transforming a sum into an integral
I remember that the result is $$\frac{{E_2 }}{{E_0 }} = \frac{{16\pi a^2 \lambda ^2 }}{{V^2 }}\left( {\frac{{4V^3 }}{{\pi ^3 \lambda ^5 }}} \right)\sum\limits_{i,j,k}^\infty {\frac{{z^{j + k + l} }}{{\left( {j + k + l} \right)^{1/2} \left( {j - k} \right)l}}} \frac{{\partial J}}{{\partial u}} $$. Your evaluation doens't take care of this complexity of the result. I don't think it's soo easy. I understand how to change to polar coordinates, i don't have problemas with this point. I don't think H is theta indipendent!
Jan
6
comment Transforming a sum into an integral
The result is very difficul to write, i don't think it's soo easy to get it. I tried to use polar coordinates but i don't know how to integrate!
Dec
27
comment Transforming a sum into an integral
Sorry i respond you soo late.Can you give me the calculations???
Sep
19
answered Transforming a sum into an integral
Sep
19
awarded  Teacher
Sep
19
answered Derivation of Maxwell's equations from field tensor lagrangian
Sep
18
revised Transforming a sum into an integral
edited tags
Sep
14
answered Fourier transform of the Coulomb potential
Sep
13
awarded  Student
Sep
13
awarded  Editor
Sep
13
revised Transforming a sum into an integral
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Sep
13
asked Transforming a sum into an integral