How to use really small dots in scatter plots?

I tried '.' but it is still too big for me. 'LineWidth', 0 is not possible (error) I dont know if a '.' dot has an outline or not It is also good for me, if dots are small dots on the saved vectorgraphic figure and can be ugly on the MATLAB plot

Answer 1

[Azzi Abdelmalek]

h=plot(1:10,1:10,'.');
set(h,'markersize',4)