DLMF:1.16.E44 (Q652): Difference between revisions

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‎Changed an Item: Add constraint
‎Changed an Item: Add constraint
 
Property / Symbols used
 
Property / Symbols used: Q10897 / rank
 
Normal rank
Property / Symbols used: Q10897 / qualifier
 
Defining formula:

sign ⁡ x sign 𝑥 {\displaystyle{\displaystyle\operatorname{sign}\NVar{x}}}

\sign@@{\NVar{x}}
Property / Symbols used: Q10897 / qualifier
 
xml-id: introduction.Sx4.p2.t1.r18.m6adec

Latest revision as of 16:40, 1 January 2020

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DLMF:1.16.E44
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    Statements

    Defining formula
    sign ⁡ ( x ) = 2 ⁢ H ⁡ ( x ) - 1 , sign 𝑥 2 Heaviside-H 𝑥 1 {\displaystyle{\displaystyle\operatorname{sign}\left(x\right)=2H\left(x\right)% -1,}}
    0 references
    DLMF id
    DLMF:1.16.E44
    0 references
    constraint
    x ≠ 0 𝑥 0 {\displaystyle{\displaystyle x\neq 0}}
    0 references
    Symbols used
    Heaviside function
    Defining formula
    H ⁡ ( x ) Heaviside-H 𝑥 {\displaystyle{\displaystyle H\left(\NVar{x}\right)}}
    xml-id
    C1.S16.E13.m2afdec
    0 references
    Q10897
    Defining formula
    sign ⁡ x sign 𝑥 {\displaystyle{\displaystyle\operatorname{sign}\NVar{x}}}
    xml-id
    introduction.Sx4.p2.t1.r18.m6adec
    0 references
     
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