How do I plot an equation with multiple Iterations.

I need to plot the 500 iterations versus the iteration numbers, but with the code I'm using, it just gives me a blank graph.

lambda=6.544; 
x0=0.65; 
N=500;

for i=1:N
    x1=lambda*(x0^2)*(1-x0);
    
    x0=x1;

end
plot(N,x1) 

Answer 1

[Robert U]

Hi Heather Worth,

you can store x1 each iteration in a vector and plot the vector at the end of the calculation.

lambda=6.544; 
x0=0.65; 
N=500;

for ik=1:N
    x1(ik) = lambda*(x0^2)*(1-x0);
    
    x0 = x1(ik);
end
plot(1:N,x1,'.','MarkerSize',12)

Or you can plot each iteration on the fly.

lambda=6.544; 
x0=0.65; 
N=500;

fh = figure;
ah = axes;
hold(ah,'on');
for ik=1:N
    x1 = lambda*(x0^2)*(1-x0);
    
    x0 = x1;
    plot(ah,ik,x1,'bl.','MarkerSize',12) 
end

Kind regards,

Robert