Revision history of "Ramanujan's sum"

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  • (cur | prev) 06:43, 22 June 2016‎ Tom (talk | contribs)‎ . . (321 bytes) (+321)‎ . . (Created page with "Ramanujan's sum $c_q$ is defined for positive integers $q$ and $n$ by $$c_q(n)=\displaystyle\sum_{a=1,(a,q)=1}^{q} \exp \left( \frac{2 \pi i a n}{q} \right),$$ where $(a,q)$ d...")
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