From 54218ff8731451bc3dcd7967ac9fc796bb0715dd Mon Sep 17 00:00:00 2001
From: Claude Meny <claude.meny@irap.omp.eu>
Date: Wed, 9 Jun 2021 12:36:17 +0200
Subject: [PATCH] Update textbook.fr.md

---
 .../40.classical-mechanics/10.main/textbook.fr.md             | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/10.main/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/10.main/textbook.fr.md
index b0dc4015b..f17f41316 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/10.main/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/10.main/textbook.fr.md
@@ -274,12 +274,14 @@ $`\mathbf{
 \left\{\begin{array}{l}
 t'=dt \\
 \dfrac{dx'}{dt'}=\dfrac{dx}{dt}-V_x \\
+\\
 \dfrac{dy'}{dt'}=\dfrac{dy}{dt}-V_y \\ 
+\\
 \dfrac{dz'}{dt'}=\dfrac{dz}{dt}-V_z 
 \end{array}
 \right.
 }`$
-$`\quad\Longrightarrow`$
+$`\quad\Longrightarrow\quad`$
 $`\mathbf{
 \left\{\begin{array}{l}
 v_x'=v_x-V_x \\