i need the nodes to move in different direction

clear all;

X=200;
Y=200;
Num=10;
n=10;
Loc_Nodes=zeros(2,Num);

 for i=1:2
    x0=rand(1,Num)*X;
    y0=rand(1,Num)*Y;
     Loc_Nodes(1,:)=x0;
    Loc_Nodes(2,:)=y0;
end
r= randsample(n,1);
while(r<11)
    for j=1:10
%k=[0,20,30,45,60,90,120,135,150,160,180,200,210,225,240,270,290,300,315,330,360];
r= randsample(n,1);
theta=360*rand;
[x,y]=pol2cart(deg2rad(theta),r);
 x0=x0+x;
 y0=y0+y;
 Loc_Nodes(1,:)=x0;
 Loc_Nodes(2,:)=y0;
    scatter(  Loc_Nodes(1,:), Loc_Nodes(2,:),'filled');
    xlim ([0 210])
      ylim ([0 210])
      xticks(0:10:200)
      yticks(0:10:200)
      drawnow;
      pause(1)
    end
end

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I have no idea what your question is.

If you want the rand function to return negative numbers, subtract it from 0.5.

Example —

x0 = (0.5-rand(1,Num))*X;
    y0 = (0.5-rand(1,Num))*Y;

About half of the values of ‘x0’ and ‘y0’ will be negative.

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i need the nodes to move in different direction

i need the nodes to move in different direction