DLMF:6.5.E3 (Q2243): Difference between revisions

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Property / Symbols used
 
Property / Symbols used: imaginary unit / rank
 
Normal rank
Property / Symbols used: imaginary unit / qualifier
 
test:

i imaginary-unit {\displaystyle{\displaystyle\mathrm{i}}}

\iunit
Property / Symbols used: imaginary unit / qualifier
 
xml-id: C1.S9.E1.m2abdec

Revision as of 01:24, 2 January 2020

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DLMF:6.5.E3
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    Statements

    1 2 ( Ei ( x ) + E 1 ( x ) ) = Shi ( x ) = - i Si ( i x ) , 1 2 exponential-integral-Ei 𝑥 exponential-integral 𝑥 hyperbolic-sine-integral 𝑥 𝑖 sine-integral 𝑖 𝑥 {\displaystyle{\displaystyle\tfrac{1}{2}(\mathrm{Ei}\left(x\right)+E_{1}\left(% x\right))=\mathrm{Shi}\left(x\right)=-i\mathrm{Si}\left(ix\right),}}
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    E 1 ( z ) exponential-integral 𝑧 {\displaystyle{\displaystyle E_{1}\left(\NVar{z}\right)}}
    C6.S2.E1.m2abdec
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    Ei ( x ) exponential-integral-Ei 𝑥 {\displaystyle{\displaystyle\mathrm{Ei}\left(\NVar{x}\right)}}
    C6.S2.SS1.p3.m2abdec
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    Shi ( z ) hyperbolic-sine-integral 𝑧 {\displaystyle{\displaystyle\mathrm{Shi}\left(\NVar{z}\right)}}
    C6.S2.E15.m2adec
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    i imaginary-unit {\displaystyle{\displaystyle\mathrm{i}}}
    C1.S9.E1.m2abdec
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