DLMF:8.21.E18 (Q2740)

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DLMF:8.21.E18
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    Statements

    Defining formula
    f ⁢ ( a , z ) = si ⁡ ( a , z ) ⁢ cos ⁡ z - ci ⁡ ( a , z ) ⁢ sin ⁡ z , 𝑓 𝑎 𝑧 generalized-sine-integral-si 𝑎 𝑧 𝑧 generalized-cosine-integral-ci 𝑎 𝑧 𝑧 {\displaystyle{\displaystyle f(a,z)=\mathrm{si}\left(a,z\right)\cos z-\mathrm{% ci}\left(a,z\right)\sin z,}}
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    DLMF id
    DLMF:8.21.E18
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