How to create (x,y) matrix in complete graph in matlab

Hi I have write code for make complete graph with n vertices. and E= n*(n-1)/2. This generated graph has to display its adjacency connections in a 2xN matrix.

% Complete Graph
% N arithos komvon
% E = edges
close all
n = input ('Dose ton arithmo ton konvon: ');

E = (n*(n-1)/2);

theta = linspace(0,2*pi,n+1).';
theta(end)=[]; % 0 = 2pi so...
r = n;
cor = [r*cos(theta) r*sin(theta)]; % x coordinates of points
axes('nextplot','add')
while size(cor,1) > 1
    cor_pt = repmat(cor(1,:),size(cor,1)-1,1); % point being connected to others
    cor(1,:) = [];
    for i = 1:size(cor_pt,1)
        line([cor_pt(i,1),cor(i,1)],[cor_pt(i,2),cor(i,2)],'marker','.','markersize',20)
    end
end

Answer 1

[Steven Lord]

If this is not a homework assignment where you're expected to write the code to plot a graph yourself, just use the graph function included in MATLAB. You can call it with the adjacency matrix of your graph and then plot it.

[Konstantinos koutsikakis]

I need write code beacause is for my school.

[Konstantinos koutsikakis]

But I need convert adjacency matrix from complete graph to table (x,y)