College Physics ›› 2020, Vol. 39 ›› Issue (9): 31-33.doi: 10.16854 /j.cnki.1000-0712.190431
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QIU Wei-gang
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Abstract: The contour integral of a complex function on an infinite square is approximately the same as another
complex function. The analytical expression of infinite summation of all the zeroes of some transcendental equation is
derived by residue theorem,which is verified by the numerical calculation.
Key words: infinite sum, residue theorem, transcendental equation
QIU Wei-gang. Infinite sum and residue theorem[J].College Physics, 2020, 39(9): 31-33.
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URL: https://dxwl.bnu.edu.cn/EN/10.16854 /j.cnki.1000-0712.190431
https://dxwl.bnu.edu.cn/EN/Y2020/V39/I9/31
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