Application of the Residue Theorem to Trigonometric Sum Identities
Received:December 18, 2008  Revised:June 30, 2009
Key Words: residue theorem   trigonometric function   contour integration.  
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Author NameAffiliation
Xin WANG Basic Research Department, Dalian Naval Academy, Liaoning 116018, P. R. China 
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Abstract:
      By evaluating a contour integral with the Cauchy residue theorem, we prove a general summation formula on trigonometric sum, which contains several interesting trigonometric identities as special cases.
Citation:
DOI:10.3770/j.issn:1000-341X.2011.01.022
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