Animation of the Lorenz Attractor

Question

Westin Messer 2016-12-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/316118-animation-of-the-lorenz-attractor

评论： KSSV 2016-12-9

Hi everybody,

I'm supposed to modify this code so there's a single dot tracing the plot. I think I'm pretty close I just can't completely get it.

https://www.youtube.com/watch?v=0WhkP-VyccY

function loren3
clear;clf
global A B R 
A = 10; 
B = 8/3; 
R = 28; 
u0 = 100*(rand(3,1) - 0.5); 
[t,u] = ode45(@lor2,[0,100],u0); 
N = find(t>10); v = u(N,:);
x = v(:,1);
y = v(:,2);
plot(x,y);
view(90,90)
 M(1)=getframe;
dt=1/100;
for j = 2:1000
  t(j)=t(j-1)+dt;
    plot(x*t(j),y*t(j),'o','MarkerFaceColor','b','MarkerSize',8)
    M(j)=getframe;
    if y<=0, break, end
  end
  pause
  movie(M,1)
function uprime = lor2(t,u) 
global A B R 
uprime = zeros(3,1); 
uprime(1) = -A*u(1) + A*u(2); 
uprime(2) = R*u(1) - u(2) - u(1)*u(3); 
uprime(3) = -B*u(3) + u(1)*u(2);

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Jan 2016-12-9

编辑：Jan 2016-12-9

The youtube link is not working for me, so I cannot guess,what you want to change. It would be efficient, if you explain this directly instead of letting the readers get this most important detail of your question by using an external web service.

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