Update cheatsheet.fr.md

12.temporary_ins/20.magnetostatics-vacuum/40.ampere-theorem-applications/30.cylindrical-current-distributions/10.rectilinear-current/20.ampere-local/20.overview/cheatsheet.fr.md

@@ -300,15 +300,15 @@ $`\mathbf{\forall M \in \mathscr{E}\; , \; B_{\rho}=B_z=0}`$
 <br>
 $`\require{\cancel}\begin{align}
 \color{brown}{\mathbf{\overrightarrow{rot}\,\overrightarrow{B}}}
-&\;=\left(\xcancel{\dfrac{1}{\rho}\,\dfrac{\partial B_z}{\partial\varphi}}\;-\;\dfrac{\partial B_{\varphi}}{\partial z}}\right)\,\overrightarrow{e_{\rho}\\
+&\;=\left(\xcancel{\dfrac{1}{\rho}\,\dfrac{\partial B_z}{\partial\varphi}}\;-\;\dfrac{\partial B_{\varphi}}{\partial z}\right)\,\overrightarrow{e_{\rho}\\
 \\
 &\quad\; +\left(\xcancel{\dfrac{\partial B_{\rho}}{\partial z}}\;-\;\xcancel{\dfrac{\partial B_z}{\partial \rho}}\right)\,\overrightarrow{e_{\varphi}}\\
 \\
 &\quad\; +
 \,\dfrac{1}{\rho}\,\left(\dfrac{\partial\, (\,\rho\,B_{\varphi})}{\partial \rho}\;-\;\xcancel{\dfrac{\partial B_{\rho}}{\partial \varphi}}\right)
-\,\overrightarrow{e_z}\\
-\\& \end{align}`$
-*$`\hspace{1.7cm}\boldsymbol{\mathbf{\;=-\,\dfrac{\partial B_{\varphi}}{\partial z}}\,\overrightarrow{e_{\rho}\,+\,
+\,\overrightarrow{e_z} \end{align}`$   
+<br>
+*$`\hspace{1.7cm}\boldsymbol{\mathbf{\;=-\,\dfrac{\partial B_{\varphi}}{\partial z}}\,\overrightarrow{e_{\rho}}\,+\,
 \dfrac{1}{\rho}\,\dfrac{\partial \,(\,\rho\,B_{\varphi})}{\partial \rho}\,\overrightarrow{e_z}}}`$*
 
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