Commit 9da5c055 authored by Claude Meny's avatar Claude Meny

Update cheatshhet.fr.md

parent 45180aa2
Pipeline #13043 canceled with stage
......@@ -55,13 +55,15 @@ GRADIENT D'UN CHAMP SCALAIRE
\overrightarrow{grad}\,V &=\dfrac{\partial V}{\partial x}\,\overrightarrow{e_x}+\dfrac{\partial V}{\partial y}\,\overrightarrow{e_y}+\dfrac{\partial V}{\partial z}\,\overrightarrow{e_z} \\
&=\nabla\,V
\end{align}`$
  avec opérateur nabla $`\nabla=\dfrac{\partial}{\partial x}\,\overrightarrow{e_x}+\dfrac{\partial}{\partial y}\,\overrightarrow{e_y}+\dfrac{\partial}{\partial z}\,\overrightarrow{e_z}`$
  avec opérateur nabla :
  $`\nabla=\dfrac{\partial}{\partial x}\,\overrightarrow{e_x}+\dfrac{\partial}{\partial y}\,\overrightarrow{e_y}+\dfrac{\partial}{\partial z}\,\overrightarrow{e_z}`$
Coordonnées cylindriques :
$`\overrightarrow{grad}\,V=\dfrac{\partial V}{\partial \rho}\,\overrightarrow{e_{\rho}}+\dfrac{1}{\rho}\,\dfrac{\partial V}{\partial \varphi}\,\overrightarrow{e_{\varphi}}+\dfrac{\partial V}{\partial z}\,\overrightarrow{e_z}`$
Coordonnées sphériques :
$`\overrightarrow{grad}\,V=\dfrac{\partial V}{\partial \rho}\,\overrightarrow{e_{\rho}}+\dfrac{1}{\rho}\,\dfrac{\partial V}{\partial \theta}\,\overrightarrow{e_{\theta}}+\dfrac{1}{\rho\,sin\,\theta}\,\dfrac{\partial V}{\partial \varphi}\,\overrightarrow{e_5\varphi}`$
$`\overrightarrow{grad}\,V=\dfrac{\partial V}{\partial \rho}\,\overrightarrow{e_{\rho}}+\dfrac{1}{\rho}\,\dfrac{\partial V}{\partial \theta}\,\overrightarrow{e_{\theta}}+\dfrac{1}{\rho\,sin\,\theta}\,\dfrac{\partial V}{\partial \varphi}\,\overrightarrow{e_{\varphi}`$
......@@ -85,18 +87,9 @@ GRADIENT D'UN CHAMP SCALAIRE
* dans cette direction et sens de variation maximale :
$`\dfrac{dV_{MAX}}{\Vert\overrightarrow{dl}\Vert}=\Vert\overrightarrow{grad}\,V\Vert`$
---
*Utilisation 1*
blablabla
<br>
*Utilisatioj 2*
*Théorème du gradient*
---
......
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