Commit a65f5133 authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent 0b3d6ed0
Pipeline #13548 canceled with stage
......@@ -160,7 +160,7 @@ $`\quad = \left(\begin{array}{l}
* Nous remarquons alors que toutes les dérivées partielles du second ordre correspondant à
des termes croisés de coordonnées s'annulent :
$`\quad = \left(\begin{array}{l}
$`\require{cancel}\quad = \left(\begin{array}{l}
\dfrac{\partial^2 U_x}{\partial x^2}+\cancel{\dfrac{\partial^2 U_y}{\partial x\, \partial y}}+\dfrac{\partial^2 U_z}{\partial x \,\partial z}\\
\quad\quad - \dfrac{\partial^2 E_y}{\partial y\,\partial x}
+\dfrac{\partial^2 E_x}{\partial y^2}
......
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