Note 1 to entry: For a surface defined by r = f(u, v) where $(u,v)\in \text{U}\subseteq R^{\text{2}}$, the scalar surface element is given by

${\displaystyle \left|\frac{\partial f}{\partial u}\times \frac{\partial f}{\partial v}\right|\cdot \mathrm{d}u\mathrm{d}v}$.

Note 2 to entry: For a surface defined by the equation z = f(x, y), the scalar surface element is given by

$\sqrt{1+{\left(\frac{\partial f}{\partial x}\right)}^2+{\left(\frac{\partial f}{\partial y}\right)}^2}\mathrm{d}x\mathrm{d}y$.

Note 1 à l'article: Pour une surface définie par r = f(u, v), où $(u,v)\in \text{U}\subseteq R^{\text{2}}$, l'élément scalaire de surface est

${\displaystyle \left|\frac{\partial f}{\partial u}\times \frac{\partial f}{\partial v}\right|\cdot \mathrm{d}u\mathrm{d}v}$.

Note 2 à l'article: Pour une surface définie par l'équation z = f(x, y), l'élément scalaire de surface est

$\sqrt{1+{\left(\frac{\partial f}{\partial x}\right)}^2+{\left(\frac{\partial f}{\partial y}\right)}^2}\mathrm{d}x\mathrm{d}y$.

비고 1: r = f(u, v) 에서 정의한 표면의 경우 $(u,v)\in \text{U}\subseteq R^{\text{2}}$ 에서 다음과 같이 스칼라 곡면 원소를 부여한다

${\displaystyle \left|\frac{\partial f}{\partial u}\times \frac{\partial f}{\partial v}\right|\cdot \mathrm{d}u\mathrm{d}v}$.

비고 2: 식 z = f(x, y) 에 의해 정의된 표면의 경우, 스칼라 곡면 원소는 다음과 같이 주어진다

$\sqrt{1+{\left(\frac{\partial f}{\partial x}\right)}^2+{\left(\frac{\partial f}{\partial y}\right)}^2}\mathrm{d}x\mathrm{d}y$.