Go thru this :

https://www.mathworks.com/help/control/ref/lsim.html

I can depending on the script you come up with !!!

Many thanks. I will take a look , it might be usefull for my report.

try with this code

%%%%%%%%%%%%%%%%%%

x=linspace(0,2,1000);

f1=zeros(1,1000);

for i=1:length(x)

y=x(i);

while y>=1

y=y-1;

end

if y

Thank you for your answer, i already had to deliver my report but the real

goal is to apply this : Error=mae(x,x1) to the signal on the first image.