DLMF:4.28.E7 (Q1844)

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DLMF:4.28.E7
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    Statements

    Defining formula
    coth ⁡ z = 1 tanh ⁡ z . hyperbolic-cotangent 𝑧 1 𝑧 {\displaystyle{\displaystyle\coth z=\frac{1}{\tanh z}.}}
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    DLMF id
    DLMF:4.28.E7
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