Update mpcExample.m

Author: DanielMartensson

examples/mpcExample.m

@@ -17,7 +17,7 @@
 
 I = 0.2; % Integral action constant
 Umax = [0.4]; % Maximum input signal vector
-S = [2]; % Slack variable say that the output can be +2 over the reference R, in this case: 6+2 = 8
+S = [2]; % Slack variable says that the output can be +2 over the reference R, in this case: 6+2 = 8
 lambda = 0.2; % Regularization for smoother inputs u
 figure(2); % New figure
 x0 = [-8; 20];