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https://codeberg.org/Yael-II/MSc2-Project-Chaos.git
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removed unused file
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@@ -1,73 +0,0 @@
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import numpy as np
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import matplotlib.pyplot as plt
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from scipy.integrate import quad
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import potentials as pot
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import integrator as itg
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import initial_conditions as init
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DEFAULT_N_iter = 30000
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DEFAULT_N_part = 100
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DEFAULT_h = 0.01
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DEFAULT_c = 1.7
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E_all = np.array([1/100, 1/12, 1/10, 1/8, 1/6])
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def compute_coordinates(E: float,
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N_iter: int = DEFAULT_N_iter,
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N_part: int = DEFAULT_N_part,
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h: float = DEFAULT_h) -> tuple:
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W_part = init.n_energy_part(pot.hh_potential, N_part, E)
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# Perform integration
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t_part, coord_part = itg.rk4(0, W_part, h, N_iter, pot.hh_evolution)
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# Extract positions and velocities
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x_part = coord_part[:, 0, 0]
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y_part = coord_part[:, 0, 1]
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u_part = coord_part[:, 1, 0]
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v_part = coord_part[:, 1, 1]
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return t_part, x_part, y_part, u_part, v_part
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def x(t: float,
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x_part: np.ndarray,
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h: float = DEFAULT_h):
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return x_part[t//h]
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def theta(t: float,
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x,
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x_part: np.ndarray,
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c: float = DEFAULT_c,
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h: float = DEFAULT_h,
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ds: float = DEFAULT_h):
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"""theta(t) = c*t + int_0^t phi(x(s)) ds"""
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I = quad(lambda s: x(s, x_part), 0, t)
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return c*t + I
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def p(t: float,
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x,
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theta,
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x_part: np.ndarray,
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h: float = DEFAULT_h,
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ds: float = DEFAULT_h):
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I = quad(lambda s: x(s, x_part)*cos(theta(s, x, x_part)), 0, t)
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return I
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def M(t,
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p,
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x_part: np.ndarray,
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h: float = DEFAULT_h,
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dtau: float = DEFAULT_h):
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I = quad(lambda tau: (p(t+tau, x, theta, x_part)
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- p(tau, x, theta, x_part)))**2, 0, np.max(t))
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return I
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if __name__ == "__main__":
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for i in range(len(E_all)):
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E = E_all[i]
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t_part, x_part, y_part, v_part, u_part = compute_coordinates(E)
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I = M(t_part, x_part)
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