Commit ebd53da5 authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent 9cf6cc34
Pipeline #12744 canceled with stage
......@@ -109,14 +109,14 @@ Attention !!! En période très préliminaire d'élaboration et de construction
À tout instant t, et pour tout volume $`\tau`$ :
$`\forall \overrightarrow{r}, div \overrightarrow{E} = \dfrac{\dens}{\epsilon_0}`$
$`\Longrightarrow \iiint_{\tau} div \overrightarrow{E}\,d\tau = \iiint_{\tau}\dfrac{\dens}{\epsilon_0}\,d\tau`$
<br>
$`\left.\begin{array}{l}
\iiint_{\tau} div \overrightarrow{E}\,d\tau = \iiint_{\tau}\dfrac{\dens}{\epsilon_0}\,d\tau \\
\iiint_{\tau} div\;\overrightarrow{E} \cdot d\tau = \displaystyle
\oiint_{S\leftrightarrow\tau} \overrightarrow{E}\cdot\overrightarrow{dS}
\end{array}\right\}`$
$`\Longrightarrow`$
**$`\mathbf{\displaystyle \oiint_{S\leftrightarrow\tau} \overrightarrow{E}\cdot\overrightarrow{dS}
**$`\mathbf{\displaystyle \quad\oiint_{S\leftrightarrow\tau} \overrightarrow{E}\cdot\overrightarrow{dS}
= \dfrac{1}{\epsilon_0} \cdot \iiint_{\tau} \rho \cdot d\tau = \dfrac{Q_{int}}{\epsilon_0}}`$**
......
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