Created
January 8, 2017 15:16
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Matlab için lorenz attractor örneği.
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| % Lorenz-rendszer (Lorenz-pillangó) animáció | |
| % 2013, g0mb4 | |
| % egyenletek: | |
| % dx/dt = sigma * (y - x) | |
| % dy/dt = x * (rho - z) - y | |
| % dz/dt = x * y - beta * z | |
| % végeredmény tömbök | |
| X = []; | |
| Y = []; | |
| Z = []; | |
| % szimuláció paraméterei | |
| dt = 0.01; % lépésköz | |
| N = 10000; % iterációk száma | |
| % rendszer paraméterei | |
| rho = 28; | |
| sigma = 10; | |
| beta = 8/3; | |
| % kezdeti feltételek | |
| x0 = 0; | |
| y0 = 1; | |
| z0 = 0; | |
| s = sprintf('Lorenz Butterfly\nsigma= %.4f, rho= %.4f, beta= %.4f\n x(0)= %.4f, y(0)= %.4f, z(0) = %.4f', sigma, rho, beta, x0, y0, z0); | |
| % számítás | |
| for i = 0: N x1 = x0 + dt * sigma * (y0 - x0); y1 = y0 + dt * (x0 * (rho - z0) - y0); z1 = z0 + dt * (x0 * y0 - beta * z0); X = [X, x1]; Y = [Y, y1]; Z = [Z, z1]; x0 = x1; y0 = y1; z0 = z1; pause(0.005); plot3(X, Y, Z, 'b', x1, y1, z1, 'ro'); title(s); axis equal; view(-88, 34); | |
| end |
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