Perform a program that graphs the letter "x inside a box" of size n

Perform a program that graphs the letter "x inside a box" of size n

Answer 1

[tesarj13]

 box_size = 100;
 box = zeros(box_size);
 v = 1:box_size+1;
 box(1:box_size+1:end) =1;
 box(box_size:box_size-1:end) =1;
 imshow(box)

Is that what you want?