On the Wallis Formula

By virtue of complex methods and tools, the authors express the famous Wallis formula as a sum involving binomial coefficients, establish the expansions for sink x and cosk x in terms of cos(mx), find the general formulas for the derivatives of sink x and cosk x, and recover the general multiple-ang...

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Bibliographic Details
Main Authors: Bai-Ni Guo, Feng Qi
Format: Article
Language:English
Published: Etamaths Publishing 2015-05-01
Series:International Journal of Analysis and Applications
Online Access:http://www.etamaths.com/index.php/ijaa/article/view/507