Commit b279e821 authored by Claude Meny's avatar Claude Meny

Update...

Update 12.temporary_ins/90.electromagnetism-in-vacuum/20.electromagnetic-waves-vacuum/20.overview/cheatsheet.fr.md
parent d8e96a47
Pipeline #12876 failed with stage
......@@ -57,11 +57,11 @@ $`\Delta \overrightarrow{B}-\mu_0\epsilon_0\;\dfrac{\partial^2 \overrightarrow{B
* un vecteur densité volumique de courant nul : *$`\mathbf{\overrightarrow{j}(\overrightarrow{r},t)=\overrightarrow{0}}`$*
* Les **équations de propagation dans le vide** de $`\big(\overrightarrow{E}\,,\overrightarrow{B}\big)`$ deviennent :
* **$`\mathbf{\Delta \;\overrightarrow{E}-\mu_0 \epsilon_0 \;\dfrac{\partial^2 \overrightarrow{E}}{\partial t^2} =
\overrightarrow{0}}`$**
* **$`\mathbf{\large{\Delta \;\overrightarrow{E}-\mu_0 \epsilon_0 \;\dfrac{\partial^2 \overrightarrow{E}}{\partial t^2} =
\overrightarrow{0}}}`$**
<br>
* **$`\mathbf{\Delta \overrightarrow{B}-\mu_0\epsilon_0\;\dfrac{\partial^2 \overrightarrow{B}}
{\partial t^2}=\overrightarrow{0}}`$**
* **$`\mathbf{\large{\Delta \overrightarrow{B}-\mu_0\epsilon_0\;\dfrac{\partial^2 \overrightarrow{B}}
{\partial t^2}=\overrightarrow{0}}}`$**
questions suivantes à ajouter, modifier, remplacer
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