DLMF:19.30.E10 (Q6685): Difference between revisions

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‎Changed an Item: Add constraint
‎Changed an Item: Add constraint
Property / Symbols used
 
Property / Symbols used: cosine function / rank
 
Normal rank
Property / Symbols used: cosine function / qualifier
 
Defining formula:

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 14:23, 2 January 2020

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DLMF:19.30.E10
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    Statements

    Defining formula
    r 2 = 2 ⁢ a 2 ⁢ cos ⁡ ( 2 ⁢ θ ) , superscript 𝑟 2 2 superscript 𝑎 2 2 𝜃 {\displaystyle{\displaystyle r^{2}=2a^{2}\cos\left(2\theta\right),}}
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    DLMF id
    DLMF:19.30.E10
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    constraint
    0 ≤ θ ≤ 2 ⁢ π 0 𝜃 2 𝜋 {\displaystyle{\displaystyle 0\leq\theta\leq 2\pi}}
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    Symbols used
    the ratio of the circumference of a circle to its diameter
    Defining formula
    π {\displaystyle{\displaystyle\pi}}
    xml-id
    C3.S12.E1.m2aadec
    0 references
    cosine function
    Defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2aadec
    0 references
     
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