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Commit 67326711 authored by Claude Meny's avatar Claude Meny
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Update 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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    ...@@ -76,12 +76,11 @@ PRINCIPALES COMBINAISONS ...@@ -76,12 +76,11 @@ PRINCIPALES COMBINAISONS
    \Delta\,U_y\\ \Delta\,U_y\\
    \Delta\,U_z\\ \Delta\,U_z\\
    \end{array}\right)`$ \end{array}\right)`$
    $`\Delta\,\overrightarrow{U}=\left(\begin{array}{l} $`\;=\left(\begin{array}{l}
    \overrightarrow{\nabla}\cdot\overrightarrow{\nabla}\,U_x\\ \overrightarrow{\nabla}\cdot\overrightarrow{\nabla}\,U_x\\
    \overrightarrow{\nabla}\cdot\overrightarrow{\nabla}\,U_y\\ \overrightarrow{\nabla}\cdot\overrightarrow{\nabla}\,U_y\\
    \overrightarrow{\nabla}\cdot\overrightarrow{\nabla}\,U_z\\ \overrightarrow{\nabla}\cdot\overrightarrow{\nabla}\,U_z\\
    \end{array}\right)`$ \end{array}\right)`$
    <br>
    <details markdown=1> <details markdown=1>
    <summary>Expressions en coordonnées cylindriques et sphériques</summary> <summary>Expressions en coordonnées cylindriques et sphériques</summary>
    * dans la base cylindrique $`(\vec{e_{\rho}}\,,\,\vec{e_{\phi}}\,,\,\vec{e_z})`$ : * dans la base cylindrique $`(\vec{e_{\rho}}\,,\,\vec{e_{\phi}}\,,\,\vec{e_z})`$ :
    ......
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