DLMF:4.2.E24 (Q1520)

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DLMF:4.2.E24
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    Statements

    Defining formula
    exp ⁡ z = e x ⁢ cos ⁡ y + i ⁢ e x ⁢ sin ⁡ y . 𝑧 superscript 𝑒 𝑥 𝑦 𝑖 superscript 𝑒 𝑥 𝑦 {\displaystyle{\displaystyle\exp z=e^{x}\cos y+ie^{x}\sin y.}}
    0 references
    DLMF id
    DLMF:4.2.E24
    0 references
    Symbols used
    cosine function
    Defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2adec
    0 references
     
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