Problem 42456. Create an array (n,n) where only diagonal elements are '1' and others are '0'

Create an array (n,n) where only diagonal elements are '1' and others are '0'

EX: n = 3; then Resultant array would be [ 1 0 1

                                0 1 0

                                1 0 1 ]

Solve

Last Solution submitted on Feb 10, 2020

Anupam Agarwal on 11 Jul 2015

if mod(x,2)==0
a = eye(x);
b = fliplr(a);
c= a+b;
else
a = eye(x);
b = fliplr(a);
c= a+b;
c(round(x/2),round(x/2)) = 1;
end

I am getting the right solution on software ... here it is failing ... please help me

Jan Orwat on 11 Jul 2015

solution is in c, output is in y which doesn't exist in workspace.

matrices