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3.4.E27 - MaRDI portal

3.4.E27 (Q1202)

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3.4.E27
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    Statements

    DLMF defining formula
    ∇ 2 ⁡ u = ∂ 2 ⁡ u ∂ ⁡ x 2 + ∂ 2 ⁡ u ∂ ⁡ y 2 . superscript ∇ 2 𝑢 partial-derivative 𝑢 𝑥 2 partial-derivative 𝑢 𝑦 2 {\displaystyle{\displaystyle\nabla^{2}u=\frac{{\partial}^{2}u}{{\partial x}^{2% }}+\frac{{\partial}^{2}u}{{\partial y}^{2}}\,.}}
    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.m4aedec
    0 references
    partial differential of $$x$$
    DLMF defining formula
    ∂ ⁡ x 𝑥 {\displaystyle{\displaystyle\partial\NVar{x}}}
    xml-id
    C1.S5.E3.m2agdec
    0 references
    function
    DLMF defining formula
    u 𝑢 {\displaystyle{\displaystyle u}}
    xml-id
    C3.S4.XMD6.m1gdec
    0 references

    Identifiers

     
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