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On a paper by Copson and Ferrar
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On a paper by Copson and Ferrar
On a paper by Copson and Ferrar
AE
A. Erdélyi
A. Erdélyi
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1 May 1939
journal article
research article
Published by
Cambridge University Press (CUP)
in
Proceedings of the Edinburgh Mathematical Society
Vol. 6
(1)
,
11
https://doi.org/10.1017/s0013091500008488
Abstract
Concerning your paper written in collaboration with Professor Copson, I found the expansion offor small values of λ in the following manner: The elementary substitution tan ½φ = sin θ/(et + cos θ)yieldsi.e. your equation (5.11).
Keywords
COPSON
ELEMENTARY
WRITTEN
TAN
SUBSTITUTION
PROFESSOR
YIELDSI.E
SIN
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