diff --git a/tp/simu_robot_etu/simu_robot_etu.m b/tp/simu_robot_etu/simu_robot_etu.m
index 30ed4123977de6338bec471ad4430862ba500dda..77c50f51c6f40bba76cd8a02680d9c545fe913c0 100644
--- a/tp/simu_robot_etu/simu_robot_etu.m
+++ b/tp/simu_robot_etu/simu_robot_etu.m
@@ -59,7 +59,7 @@ fich = 'cas1_2';
 tf = 2;             % temps final
 
 % A compléter
-% x0 = [0 pi/10 0 0]; % initial point
+% x0 = [0 pi/10 0 0]'; % initial point
 % K = 
 % delta_t =           % si nécessaire 
 algorithme = 'ode45';