diff --git a/SimPkg_F21(student_ver)/xenia_attempts_save.m b/SimPkg_F21(student_ver)/xenia_attempts_save.m
index 06b7028..7d71ed9 100644
--- a/SimPkg_F21(student_ver)/xenia_attempts_save.m
+++ b/SimPkg_F21(student_ver)/xenia_attempts_save.m
@@ -9,8 +9,8 @@ x = sym('x', [1 6]);
 % F_x=interp1(T,U(:,2),t,'previous','extrap');
 
 %slip angle functions in degrees
-a_f=rad2deg(delta_f-atan2(x(4)+a*x(6),x(2)));
-a_r=rad2deg(-atan2((x(4)-b*x(6)),x(2)));
+a_f=delta_f-atan2(x(4)+a*x(6),x(2));
+a_r=-atan2((x(4)-b*x(6)),x(2));
 
 %Nonlinear Tire Dynamics
 phi_yf=(1-Ey)*(a_f+Shy)+(Ey/By)*atan(By*(a_f+Shy));