DLMF:19.18.E15 (Q6358)

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DLMF:19.18.E15
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    Statements

    Defining formula
    ∂ 2 ⁡ W ∂ ⁡ t 2 = ∂ 2 ⁡ W ∂ ⁡ x 2 + ∂ 2 ⁡ W ∂ ⁡ y 2 . partial-derivative 𝑊 𝑡 2 partial-derivative 𝑊 𝑥 2 partial-derivative 𝑊 𝑦 2 {\displaystyle{\displaystyle\frac{{\partial}^{2}W}{{\partial t}^{2}}=\frac{{% \partial}^{2}W}{{\partial x}^{2}}+\frac{{\partial}^{2}W}{{\partial y}^{2}}.}}
    0 references
    DLMF id
    DLMF:19.18.E15
    0 references
    Symbols used
    partial derivative of $$f$$ with respect to $$x$$
    Defining formula
    ∂ ⁡ f ∂ ⁡ x partial-derivative 𝑓 𝑥 {\displaystyle{\displaystyle\frac{\partial\NVar{f}}{\partial\NVar{x}}}}
    xml-id
    C1.S5.E3.m4afdec
    0 references
    partial differential of $$x$$
    Defining formula
    ∂ ⁡ x 𝑥 {\displaystyle{\displaystyle\partial\NVar{x}}}
    xml-id
    C1.S5.E3.m2aldec
    0 references
     
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