DLMF:4.14.E3 (Q1655): Difference between revisions

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imported>Admin
Property / Symbols used
 
Property / Symbols used: cosine function / rank
 
Normal rank
Property / Symbols used: cosine function / qualifier
 
test:

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

\cos@@{\NVar{z}}
Property / Symbols used: cosine function / qualifier
 
xml-id: C4.S14.E2.m2aadec

Revision as of 17:18, 1 January 2020

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DLMF:4.14.E3
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    cos z ± i sin z = e ± i z , plus-or-minus 𝑧 𝑖 𝑧 superscript 𝑒 plus-or-minus 𝑖 𝑧 {\displaystyle{\displaystyle\cos z\pm i\sin z=e^{\pm iz},}}
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    cos z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    C4.S14.E2.m2aadec
    0 references