Commit 73e5a9e0 authored by Claude Meny's avatar Claude Meny

Update cheatshhet.fr.md

parent 1d4bf354
Pipeline #13053 failed with stage
......@@ -57,11 +57,11 @@ GRADIENT D'UN CHAMP SCALAIRE
Coordonnées cartésiennes :
$`\begin{align}
\overrightarrow{grad}\,V &=\dfrac{\partial V}{\partial x}\,\overrightarrow{e_x}+\dfrac{\partial V}{\partial y}\,\overrightarrow{e_y}+\dfrac{\partial V}{\partial z}\,\overrightarrow{e_z} \\
&=\overrightarrow{nabla}\,V
&=\overrightarrow{\nabla}\,V
\end{align}`$
  avec opérateur nabla :
  $`\overrightarrow{nabla}=\dfrac{\partial}{\partial x}\,\overrightarrow{e_x}+\dfrac{\partial}{\partial y}\,\overrightarrow{e_y}+\dfrac{\partial}{\partial z}\,\overrightarrow{e_z}`$
  $`\overrightarrow{\nabla}=\dfrac{\partial}{\partial x}\,\overrightarrow{e_x}+\dfrac{\partial}{\partial y}\,\overrightarrow{e_y}+\dfrac{\partial}{\partial z}\,\overrightarrow{e_z}`$
Coordonnées cylindriques :
$`\overrightarrow{grad}\,V=\dfrac{\partial V}{\partial \rho}\,\overrightarrow{e_{\rho}}+\dfrac{1}{\rho}\,\dfrac{\partial V}{\partial \varphi}\,\overrightarrow{e_{\varphi}}+\dfrac{\partial V}{\partial z}\,\overrightarrow{e_z}`$
......
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