Commit 5cb7968b authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent 927d336d
Pipeline #19502 canceled with stage
......@@ -26,12 +26,6 @@ div\,\overrightarrow{X}}`$**$`\mathbf{\;=\dfrac{d\Phi_X}{d\tau}}`$**$`\;\mathbf{
##### Expression de la divergence en coordonnées sphériques
**$`\boldsymbol{\mathbf{\begin{align}
div\,\overrightarrow{X}}\color{black}{\;=\dfrac{d\Phi_X}{d\tau}}\, = &\dfrac{1}{r^2}\;\dfrac{\partial\,(r^2\,X_r}{\partial\,r}\\
& \quad\quad + \dfrac{1}{r\,sin\,\theta}\;\dfrac{\partial\,(sin\,\theta\,X_{\theta})}{\partial\,\theta}\\
& \quad\quad\quad\quad + \dfrac{1}{r\,sin\,\theta}\;\dfrac{\partial\,X_{\varphi}}{\partial\,\varphi}
\end{align}}}`$**
**$`\mathbf{\mathbf{\begin{align}
div\,\overrightarrow{X}\color{black}{\;=\dfrac{d\Phi_X}{d\tau}}\,= &\dfrac{1}{r^2}\;\dfrac{\partial\,(r^2\,X_r}{\partial\,r}\\
\\
......
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