DLMF:11.10.E37 (Q4059)

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Language	Label	Description	Also known as
English	DLMF:11.10.E37	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle z\mathbf{E}_{\nu}'\left(z\right)\pm\nu\mathbf{E}_% {\nu}\left(z\right)=\pm z\mathbf{E}_{\nu\mp 1}\left(z\right)\pm\frac{(1-\cos% \left(\pi\nu\right))}{\pi}.}}

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DLMF:11.10.E37

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Defining formula

{\displaystyle{\displaystyle\mathbf{E}_{\NVar{\nu}}\left(\NVar{z}\right)}}

C11.S10.E2.m2audec

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the ratio of the circumference of a circle to its diameter

Defining formula

{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2aabdec

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cosine function

Defining formula

{\displaystyle{\displaystyle\cos\NVar{z}}}

C4.S14.E2.m2aodec

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Sitelinks

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