Update cheatsheet.fr.md

12.temporary_ins/20.magnetostatics-vacuum/10.effects-stationary-magnetic-field/20.overview/cheatsheet.fr.md

@@ -162,7 +162,7 @@ $`\quad\quad\Longrightarrow \overrightarrow{dF_{mag}}= \dens_{libre} \cdot d\tau
 &= \dens_{libre} \cdot \underbrace{d\tau}_{\color{blue}{\;\;=\\dS\,dl}} \cdot (\overrightarrow{v}_{dér\,/\,dC} \wedge \overrightarrow{B})\\
 \\
 &=\underbrace{(\dens_{libre}\cdot \overrightarrow{v}_{dér\,/\,dC}}_{\color{blue}{=\,\overrightarrow{j}_{cond}}}
-   \cdot \underbrace{dS}_{\color{blue}{\vec{dS}\parallel\vec{v}}}\cdot \underbrace{dl}_{\color{blue}{\vec{dl}\parallel\vec{v}}}}) \wedge \overrightarrow{B}\\
+   \cdot \underbrace{dS}_{\color{blue}{\vec{dS}\parallel\vec{v}}}\cdot \underbrace{dl}_{\color{blue}{\vec{dl}\parallel\vec{v}}}) \wedge \overrightarrow{B}\\
 \\
 &= \underbrace{\overrightarrow{j}_{cond}}\cdot\overrightarrow{dS}}_{\color{blue}{=\,I}}\;\overrightarrow{dl}\wedge\overrightarrow{B}
 \end{align}`$
@@ -171,7 +171,7 @@ $`\quad\quad\Longrightarrow \overrightarrow{dF_{mag}}= \dens_{libre} \cdot d\tau
 &= \dens_{libre} \cdot \underbrace{d\tau}_{\color{blue}{\;\;=\\dS\,dl}} \cdot (\overrightarrow{v}_{dér\,/\,dC} \wedge \overrightarrow{B})\\
 \\
 &=\underbrace{(\dens_{libre}\cdot \overrightarrow{v}_{dér\,/\,dC}}_{\color{blue}{=\,\overrightarrow{j}_{cond}}}
-   \cdot \underbrace{dS}_{\color{blue}{\vec{dS}\parallel\vec{v}}}\cdot \underbrace{dl}_{\color{blue}{\vec{dl}\parallel\vec{v}}}}) \wedge \overrightarrow{B}
+   \cdot \underbrace{dS}_{\color{blue}{\vec{dS}\parallel\vec{v}}}\cdot \underbrace{dl}_{\color{blue}{\vec{dl}\parallel\vec{v}}}) \wedge \overrightarrow{B}
 \end{align}`$
 
 **$`\mathbf{\overrightarrow{dF}_{Laplace}}`$** *$`\begin{align}\;