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DLMF:19.18.E17 - MaRDI portal

DLMF:19.18.E17 (Q7056)

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DLMF:19.18.E17
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    Statements

    DLMF defining formula
    ∂ 2 ⁡ U ∂ ⁡ x 2 + ∂ 2 ⁡ U ∂ ⁡ y 2 + ∂ 2 ⁡ U ∂ ⁡ z 2 = 0 . partial-derivative 𝑈 𝑥 2 partial-derivative 𝑈 𝑦 2 partial-derivative 𝑈 𝑧 2 0 {\displaystyle{\displaystyle\frac{{\partial}^{2}U}{{\partial x}^{2}}+\frac{{% \partial}^{2}U}{{\partial y}^{2}}+\frac{{\partial}^{2}U}{{\partial z}^{2}}=0.}}
    0 references
    Symbols used
    partial derivative of $$f$$ with respect to $$x$$
    DLMF defining formula
    ∂ ⁡ f ∂ ⁡ x partial-derivative 𝑓 𝑥 {\displaystyle{\displaystyle\frac{\partial\NVar{f}}{\partial\NVar{x}}}}
    xml-id
    C1.S5.E3.m4ahdec
    0 references
    partial differential of $$x$$
    DLMF defining formula
    ∂ ⁡ x 𝑥 {\displaystyle{\displaystyle\partial\NVar{x}}}
    xml-id
    C1.S5.E3.m2andec
    0 references
    U
    DLMF defining formula
    U 𝑈 {\displaystyle{\displaystyle U}}
    xml-id
    C19.S18.XMD4.m1dec
    0 references

    Identifiers

     
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