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Commit 186cd7dd authored by Claude Meny's avatar Claude Meny
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Update 12.temporary_ins/08.grad-div-rot/70.combinaisons-of-operators/20.overview/cheatsheet.fr.md

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    12.temporary_ins/08.grad-div-rot/70.combinaisons-of-operators/20.overview/cheatsheet.fr.md
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    ...@@ -254,8 +254,8 @@ PRINCIPALES COMBINAISONS ...@@ -254,8 +254,8 @@ PRINCIPALES COMBINAISONS
    * L'expression du laplacien vectoriel **$`\Delta\,\overrightarrow{U}`$** * L'expression du laplacien vectoriel **$`\Delta\,\overrightarrow{U}`$**
    d'un vecteur $`\overrightarrow{U}`$ **en coordonnées cartésiennes** est : d'un vecteur $`\overrightarrow{U}`$ **en coordonnées cartésiennes** est :
    <br> <br>
    $`\Delta`$ **$`\Delta`$**
    $`=\left( **$`=\left(
    \begin{array}{l} \begin{array}{l}
    \dfrac{\partial^2 U_x}{\partial x^2} + \dfrac{\partial^2 U_x}{\partial y^2} + \dfrac{\partial^2 U_x}{\partial z^2}\\ \dfrac{\partial^2 U_x}{\partial x^2} + \dfrac{\partial^2 U_x}{\partial y^2} + \dfrac{\partial^2 U_x}{\partial z^2}\\
    \dfrac{\partial^2 U_x}{\partial x^2} + \dfrac{\partial^2 U_x}{\partial y^2} + \dfrac{\partial^2 U_x}{\partial z^2}\\ \dfrac{\partial^2 U_x}{\partial x^2} + \dfrac{\partial^2 U_x}{\partial y^2} + \dfrac{\partial^2 U_x}{\partial z^2}\\
    ......
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