Talk:Sinhc function

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The Maclaurin series for sinh(z)/z is ${\displaystyle \sum _{i=0}^{\infty }{\frac {z^{2i}}{(2i+1)!}}}$. This can be trivially derived from AMS 55 Equation 4.5.62. Where did the series in the article come from? Van.snyder (talk) 21:38, 22 April 2021 (UTC)Reply