I need help please As soon as you can

I try to run this code to solve an n x n linear

system using the Gaussian Elimination Methods

but it says there is error in Error: File: mad.m Line: 7 Column: 20

Illegal use of reserved keyword "for".

can anybody solve the problem and send the code?

 for i=j+1:m
        a(i,:)=a(i,:)-a(j,:)*(a(i,j)/a(j,j));
    enda = input('Enter the augument matrix:');
[m,n]=size(a);
for j=1:m-1
    for z=2:m
        if a(j,j)==for i=j+1:m
        a(i,:)=a(i,:)-a(j,:)*(a(i,j)/a(j,j));
    enda = input('Enter the augument matrix:');
[m,n]=size(a);
0;
            t=a(j,:);a(j,:)=a(z,:);
            a(z,:)=t;
            end
    end
    end
end
    end
x=zeros(1,m);
for s=m:-1:1
    c=0;
    for k=2:m
        c=c+a(s,k)*x(k);
    end
    x(s)=(a(s,n)-c)/a(s,s);
end
disp('Gauss elimination method:');
a;
x';

[Mohammad Sami]

What were you trying to do at this line. This is where the error is likely coming from due to incorrect usage of for loop.

if a(j,j)==for i=j+1:m

[Rik]

You should select your code and click the smart allign button (by default the hotkey for this is ctrl-i). Then it is easier to see the structure of your code and find errors/mismatches with end keywords.

This time I edited your question for you. Next time, please use the tools explained on this page to make your question more readable.

Your question is not urgent, the reason for that is explained here. You should try to use a descriptive title instead.

[Walter Roberson]

Muhammad Saad:

There is no rule against posting assignment questions here.

The regular volunteers make attempts to guide people to understand the situation better, avoiding giving direct solutions for anything non-trivial.

[DGM]

This code came from the answer here. Don't invest too much time trying to fix random junk code you find on the internet.

Answer 1

[Vinai Datta Thatiparthi]

To echo with what's already mentioned on this thread, "for" is a reserved keyword in MATLAB, we cannot use this as another variable. You might have to rearrange your code accordingly to avoid the error.