DLMF:1.6.E51 (Q232): Difference between revisions

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Property / Symbols used
 
Property / Symbols used: partial derivative of $$f$$ with respect to $$x$$ / rank
 
Normal rank
Property / Symbols used: partial derivative of $$f$$ with respect to $$x$$ / qualifier
 
test:

f x partial-derivative 𝑓 𝑥 {\displaystyle{\displaystyle\frac{\partial\NVar{f}}{\partial\NVar{x}}}}

\pderiv{\NVar{f}}{\NVar{x}}
Property / Symbols used: partial derivative of $$f$$ with respect to $$x$$ / qualifier
 
xml-id: C1.S5.E3.m4ahdec

Revision as of 15:00, 1 January 2020

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DLMF:1.6.E51
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    Statements

    A ( S ) = D 1 + ( f x ) 2 + ( f y ) 2 d A . 𝐴 𝑆 subscript double-integral 𝐷 1 superscript partial-derivative 𝑓 𝑥 2 superscript partial-derivative 𝑓 𝑦 2 𝐴 {\displaystyle{\displaystyle A(S)=\iint_{D}\sqrt{1+\left(\frac{\partial f}{% \partial x}\right)^{2}+\left(\frac{\partial f}{\partial y}\right)^{2}}\mathrm{% d}A.}}
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    d x 𝑥 {\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}
    C1.S4.SS4.m1aidec
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    f x partial-derivative 𝑓 𝑥 {\displaystyle{\displaystyle\frac{\partial\NVar{f}}{\partial\NVar{x}}}}
    C1.S5.E3.m4ahdec
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