DLMF:6.2.E20 (Q2231)

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Language	Label	Description	Also known as
English	DLMF:6.2.E20	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle\mathrm{Ci}\left(z\right)=\mathrm{f}\left(z\right)% \sin z-\mathrm{g}\left(z\right)\cos z.}}

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DLMF:6.2.E20

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cosine function

Defining formula

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

C4.S14.E2.m2aedec

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cosine integral

Defining formula

{\displaystyle{\displaystyle\mathrm{Ci}\left(\NVar{z}\right)}}

C6.S2.E11.m2aedec

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Defining formula

{\displaystyle{\displaystyle\sin\NVar{z}}}

C4.S14.E1.m2aedec

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auxiliary function for sine and cosine integrals

Defining formula

{\displaystyle{\displaystyle\mathrm{f}\left(\NVar{z}\right)}}

C6.S2.E17.m2abdec

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auxiliary function for sine and cosine integrals

Defining formula

{\displaystyle{\displaystyle\mathrm{g}\left(\NVar{z}\right)}}

C6.S2.E18.m2abdec

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Defining formula

{\displaystyle{\displaystyle z}}

C6.S1.XMD2.m1ndec

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Sitelinks

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