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DLMF:10.39#Ex2
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MaRDI QID
Q4266
Label: DLMF:10.39#Ex2
Digital Library of Mathematical Functions ID
10.39#Ex2
I
-
1
2
(
z
)
=
(
2
π
z
)
1
2
cosh
z
,
modified-Bessel-first-kind
1
2
𝑧
superscript
2
𝜋
𝑧
1
2
𝑧
{\displaystyle{\displaystyle I_{-\frac{1}{2}}\left(z\right)=\left(\frac{2}{\pi z% }\right)^{\frac{1}{2}}\cosh z,}}
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