I want to create a 2D scatter plot with loops

I want to display discrete values using a scatter plot graph covering 40 columns and 50 rows using a loop(s). (Domain 0<=x<=40) (Range 0<=y<=50.

Ive only managed to achieve 1 row but cannot manage to make more rows. How do i loop for the other 49 rows? (if that is even the best approach to this question).

y = linspace(0,i);

x = 0;

for i = 0:1:50

y = i

end

scatter(0:40,y, 'mo')

Answer 1

[KSSV]

[X,Y] = meshgrid(0:40,0:50) ;
scatter(X(:),Y(:),[],Y(:))

scatter(X(:),Y(:),[],X(:))