clear clc -3 -4 -5 -4 -1 -5 -9 -1 -9 00001 miter 100 for end for iter

clear;
clc;
a=[-3 -4 -5;-4 -1 -5;1 5 1]
b=[-9;-1;-9]
e=0.00001;
n=3;
miter=100;
for i=1:n
    x(i)=0;
end
for iter=1:miter
    big=0;
        for i=1:n
            sum=0;
                  if i==1
                      for j=i+1:n
                          sum=sum+a(i,j)*x(j);
                      end
                  elseif i==n
                          for j=1:n-1
                              sum=sum+a(i,j)*x(j);
                          end
                  else 
                          for j=1:i-1
                              sum=sum+a(i,j)*x(j);
                          end
                          for j=i+1:n
                              sum=sum+a(i,j)*x(j);
                          end
                      
                  end
               temp=(b(i)-sum)/a(i,i);
               if abs(temp-x(i))>big
                   big=abs(temp-x(i));
               end
               x(i)=temp;
                if big < e 
                niter=iter;
                break;
            end
        end
           
end
disp('Решение');
x