DLMF:4.13.E4 (Q1645)

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DLMF:4.13.E4
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    Statements

    Defining formula
    d W d x = e - W 1 + W , derivative Lambert-W 𝑥 superscript 𝑒 Lambert-W 1 Lambert-W {\displaystyle{\displaystyle\frac{\mathrm{d}W}{\mathrm{d}x}=\frac{e^{-W}}{1+W}% ,}}
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    DLMF id
    DLMF:4.13.E4
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    constraint
    x ≠ - 1 e 𝑥 1 𝑒 {\displaystyle{\displaystyle x\neq-\dfrac{1}{e}}}
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