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18 lines
435 B
Python
18 lines
435 B
Python
import numpy as np
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import matplotlib.pyplot as plt
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U = 1.25 # vitesse m.s-¹
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Wm = 0.3 # distance minimale entre la voiture et celle qui la précède m
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Ws = 0.9 # m
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ww = np.linspace(0, 10, 200)
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def phi(ww):
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PHI = (U*(1 - np.exp(- (ww-Wm)/Ws)))
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return (ww >= Wm)* PHI
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plt.figure(figsize=[16,9])
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plt.xlabel('distance w en m')
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plt.ylabel('vitesse en m.s-¹')
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plt.plot(ww, phi(ww))
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plt.savefig('phi(ww).png', dpi=300)
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plt.show() |