Creating regenerative random numbers

The code creates 10 random ellipses

N = 10;
for R = 1:N             %for loop to repeat 10 times 
t = linspace(0,2*pi);   % t defined angle??? not sure
xc = randn;             %defines one of axis as random 
x = xc + randn*cos(t);        
yc = randn;
y = yc + randn*sin(t);
plot(x,y)
patch(x,y,rand) 
hold on                 %puts all ellipses on same graph
end 

How do I add to the code to make it so that everytime i run this code i get the same graph with the same random numbers inputed?

Answer 1

[Walter Roberson]

rng(655321)       %or use any other positive integer constant

[Emma]

where in the script do i put this line?

[Emma]

nevermind got it!

[Steven Lord]

This documentation page has more information about controlling the random number generator.