Update textbook.fr.md

00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/50.electromagnetism/40.n4/10.main/textbook.fr.md

@@ -361,12 +361,12 @@ Stokes' theorem =
 for all vectorial field $`\vec{X}`$, 
 
 $`\displaystyle\iint_{S\,orient.} \;\overrightarrow{rot}\;\overrightarrow{X} \cdot dS = \displaystyle 
-\oint_{\Gamma\,orient.\leftrightarrow S} \overrightarrow{X}\cdot\overrightarrow{dl}`$
+\oint_{\Gamma\leftrightarrow S} \overrightarrow{X}\cdot\overrightarrow{dl}`$
 
 
 
 $`\displaystyle\oint_{\Gamma\,orient.}\overrightarrow{H} \cdot \overrightarrow{dl}=
-\underset{S\,orient.}{\iint{\overrightarrow{j}\cdot\overrightarrow{dS}}}`$
+\underset{S\leftrightarrow\Gamma}{\iint{\overrightarrow{j}\cdot\overrightarrow{dS}}}`$
 
 
 $`\displaystyle\left. \dfrac{dQ}{dt}\right|_S   =\oint_S \vec{j} \cdot \vec{dS}`$