How can generalize several "For loop" ?

Hello;

I want to generalize the expression.It goes "for i=5:n"......"for i=n:n".

I tried nested loop statement but couldn't manage..Is there any help? Thanks and regards

A=input('Enter nxn matrix:')

B=input('Enter solution matrix(n*1):')

[n n]=size(A);

L=zeros(n);

for i=1:n

L(i,i)=1;

end

for i=2:n

L(i,1)=A(i,1)/A(1,1);

end

for i=3:n

L(i,2)=A(i,2)/A(2,2);

end

for i=4:n

L(i,3)=A(i,3)/A(3,3);

end

[Walter Roberson]

duplicates http://www.mathworks.co.uk/matlabcentral/answers/64246-how-can-generalize-severel-for-loop

Answer 1

[Babak]

A=input('Enter nxn matrix:')

B=input('Enter solution matrix(n*1):')

[n n]=size(A);

L=zeros(n);

for i=1:n

L(i,i)=1;

end

for k = 1:n

    for i=k+1:n

      L(i,k)= A(i,k)/A(k,k);

    end

end