DLMF:4.28.E6 (Q1843)

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DLMF:4.28.E6
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    Statements

    Defining formula
    sech ⁡ z = 1 cosh ⁡ z , 𝑧 1 𝑧 {\displaystyle{\displaystyle\operatorname{sech}z=\frac{1}{\cosh z},}}
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    DLMF id
    DLMF:4.28.E6
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        Retrieved from "https://drmf-beta.wmflabs.org/index.php?title=Item:Q1843&oldid=7843"