DLMF:4.31.E3 (Q1853)

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DLMF:4.31.E3
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    Statements

    Defining formula
    lim z → 0 ⁡ cosh ⁡ z - 1 z 2 = 1 2 . subscript → 𝑧 0 𝑧 1 superscript 𝑧 2 1 2 {\displaystyle{\displaystyle\lim_{z\to 0}\frac{\cosh z-1}{z^{2}}=\frac{1}{2}.}}
    0 references
    DLMF id
    DLMF:4.31.E3
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    Symbols used
    hyperbolic cosine function
    Defining formula
    cosh ⁡ z 𝑧 {\displaystyle{\displaystyle\cosh\NVar{z}}}
    xml-id
    C4.S28.E2.m2aadec
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    Q11217
    Defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C4.S1.XMD8.m1cdec
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