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DLMF:1.6.E4 - MaRDI portal

DLMF:1.6.E4 (Q146)

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DLMF:1.6.E4
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    Statements

    DLMF defining formula
    cos ⁡ θ = 𝐚 ⋅ 𝐛 ∥ 𝐚 ∥ ⁢ ∥ 𝐛 ∥ ; 𝜃 ⋅ 𝐚 𝐛 norm 𝐚 norm 𝐛 {\displaystyle{\displaystyle\cos\theta=\frac{\mathbf{a}\cdot\mathbf{b}}{\|% \mathbf{a}\|\;\|\mathbf{b}\|};}}
    0 references
    Symbols used
    cosine function
    DLMF defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2adec
    0 references
    angle between a and b
    DLMF defining formula
    θ 𝜃 {\displaystyle{\displaystyle\theta}}
    xml-id
    C1.S6.XMD1.m1dec
    0 references

    Identifiers

     
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