MATLAB: The for loops do not work

Question

hello, my for loops do not seem to work.I appreciate if anyone could help me with that.

clear all;
m=500;
n=50;
G=zeros(m,n);
G(250,1)=1;
S(1,1)=1;
for i=2:1:300
sol=roots([1 -S(i-1,1) -1]);
 S(i,1)=sol(sol>=0);
end
S=10*(S);
y=ceil(S);
y(1,1)=1;
G(250,1)=1;
G(250+y(1,1),1)=1;
for t=1:1:50
    for k=50:1:1
        if y(t+50-k,1)<=250
           for j=1:1:y(t+50-k,1)
              G(250+j,k)=1;
              G(250-j,k)=1;
           end
      end
  end
end

Answer 1

What does ‘do not seem to work’ mean? Your code runs without errors.

What do you want your for loops to do?