Below is the code to print diagonal elements of each row:
m = [4 5 6;7 8 9;10 11 12];
n = size(m,1);
for i=1:n
k=1;
for j=1:i
fprintf('%d ',m(k,i-j+1))
k=k+1;
end
disp(' ');
end
% output:
% 4
% 5 7
% 6 8 10
Logic : first loop ie i=1:n is to traverse row wise in a matrix m and second loop is to print the diagonal elements in a matrix also if we are in first row we have to print one element ,in second row 2 elements is to be printed and in ith row i elements have to be printed, disp function is used to move to new line after printing diagonal elements of previous row.
