how to generate random numbers in a cell of 10m by 10m with 20 nodes and assign numbers to each node

I want to reproduce exactly the attached figure. Can anyone help with codes for generating the attached figure

[Felix Obite]

Its working now, size inputs must be interger values. Many thanks

Answer 1

[David Hill]

SU=10*rand(20,2);%sample points example
PU=10*rand(10,2);%sample points example
scatter(SU(:,1),SU(:,2),'k*')
hold on;
text(SU(:,1),SU(:,2),[num2str((1:20)'),repmat(' ',20,1)],'HorizontalAlignment','Right')
scatter(PU(:,1),PU(:,2),'k+')
text(PU(:,1),PU(:,2),[num2str((1:10)'),repmat(' ',10,1)],'HorizontalAlignment','Right')
legend('SU','PU','Location','southwest');
ax=gca;
ax.XTick=0:10;
ax.YTick=0:10;
ax.Box='on';

[Felix Obite]

Thanks David, but i got the error message below.

Invalid expression. Check for missing multiplication operator, missing or unbalanced

delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

[Jan]

In which line do you get this error? For me the code runs without problems.

[David Hill]

I copied and pasted it into the command line and it runs without error. What version of MATLAB are you using?

[Felix Obite]

version 2021a