diff --git a/BE_Beam.m b/BE_Beam.m
index 38ef7ba..59bfa90 100644
--- a/BE_Beam.m
+++ b/BE_Beam.m
@@ -203,7 +203,6 @@ for Ts = Ts2:0.001:Ts3
     if all(abs(eig(feedback(c2d(sys,Ts,'zoh'),k))) < 1)
         ;
     else
-        Ts;
         break;
     end
     
@@ -355,6 +354,8 @@ if SAVE
 end
 
 %%
+
+for Ts=
 sys_integral_d = c2d(sys_integral, 0.5, 'zoh');
 t_d = 0:0.5:10;
 cmd_d = double (t_d >= 1) ;
diff --git a/latex/Illustrations/Question4.pdf b/latex/Illustrations/Question4.pdf
index 2b6d0eb..c330a6c 100644
Binary files a/latex/Illustrations/Question4.pdf and b/latex/Illustrations/Question4.pdf differ