DLMF:8.19.E12 (Q2698): Difference between revisions

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Created a new Item: Wikidata Toolkit example test item creation
 
Changed an Item: Add constraint
Property / Symbols used
 
Property / Symbols used: base of natural logarithm / rank
 
Normal rank
Property / Symbols used: base of natural logarithm / qualifier
 
Defining formula:

e {\displaystyle{\displaystyle\mathrm{e}}}

\expe
Property / Symbols used: base of natural logarithm / qualifier
 
xml-id: C4.S2.E11.m2agdec

Revision as of 14:10, 2 January 2020

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DLMF:8.19.E12
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    Statements

    p E p + 1 ( z ) + z E p ( z ) = e - z . 𝑝 exponential-integral-En 𝑝 1 𝑧 𝑧 exponential-integral-En 𝑝 𝑧 superscript 𝑒 𝑧 {\displaystyle{\displaystyle pE_{p+1}\left(z\right)+zE_{p}\left(z\right)=e^{-z% }.}}
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    DLMF:8.19.E12
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    e {\displaystyle{\displaystyle\mathrm{e}}}
    C4.S2.E11.m2agdec
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