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Commit d2092f1b authored by Claude Meny's avatar Claude Meny
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Update cheatsheet.fr.md

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    12.temporary_ins/90.electromagnetism-in-vacuum/10.maxwell-equations/20.overview/cheatsheet.fr.md
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    ...@@ -104,12 +104,10 @@ RÉSUMÉ ...@@ -104,12 +104,10 @@ RÉSUMÉ
    $`div\,\overrightarrow{j} +\dfrac{\partial \dens}{\partial t}=0`$ $`div\,\overrightarrow{j} +\dfrac{\partial \dens}{\partial t}=0`$
    * $`\Longrightarrow`$ la propagation dans le vide de l'onde électromagnétique (EM), partie variable du champ électromagnétique : * $`\Longrightarrow`$ la propagation dans le vide de l'onde électromagnétique (EM), partie variable du champ électromagnétique :
    <br>
    $`\left\{\begin{array}{l} $`\left\{\begin{array}{l}
    \Delta \;\overrightarrow{E}-\mu_0 \epsilon_0 \;\dfrac{\partial^2 \overrightarrow{E}}{\partial t^2} = \overrightarrow{0}\\ \Delta \;\overrightarrow{E}-\mu_0 \epsilon_0 \;\dfrac{\partial^2 \overrightarrow{E}}{\partial t^2} = \overrightarrow{0}\\
    \Delta \;\overrightarrow{B}-\mu_0 \epsilon_0 \;\dfrac{\partial^2 \overrightarrow{B}}{\partial t^2} = \overrightarrow{0} \Delta \;\overrightarrow{B}-\mu_0 \epsilon_0 \;\dfrac{\partial^2 \overrightarrow{B}}{\partial t^2} = \overrightarrow{0}
    \end{array}\right.`$ \end{array}\right.`$
    <br>
    à la célérité $`c=299 792 458 m\,s^{-1}\approx 3\times 10^8 m\,s^{-1}`$, à la célérité $`c=299 792 458 m\,s^{-1}\approx 3\times 10^8 m\,s^{-1}`$,
    constante fundamentale de la nature. constante fundamentale de la nature.
    ......
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