Update...

Update 12.temporary_ins/08.conservative-vector-fields/20.conservative-vector-fields-properties/20.overview/cheatsheet.fr.md

12.temporary_ins/08.conservative-vector-fields/20.conservative-vector-fields-properties/20.overview/cheatsheet.fr.md

@@ -331,10 +331,10 @@ Dans un référentiel galiléen, Force d'une interaction s'exercant sur une pâr
 
 ---> 
 
-`\begin{align}
+$`\begin{align}
 \mathcal{W}&=\overrightarrow{F_X}\cdot\overrightarrow{dl}\\
 &=m\,\dfrac{\overrightarrow{\mathscr{v}}}{dt}\cdot\overrightarrow{\mathscr{v}}\;dt\\
-&=m\,\dfrac{1}{2}\;\left(\dfrac{d\overrightarrow{\mathscr{v}}}{dt}\cdot\overrightarrow{\mathscr{v}}+\overrightarrow{\mathscr{v}}\cdot\dfrac{d\overrightarrow{\mathscr{v}}}{dt}\right)`
+&=m\,\dfrac{1}{2}\;\left(\dfrac{d\overrightarrow{\mathscr{v}}}{dt}\cdot\overrightarrow{\mathscr{v}}+\overrightarrow{\mathscr{v}}\cdot\dfrac{d\overrightarrow{\mathscr{v}}}{dt}\right)`$