In [4]:
import numpy as np
data = np.load('simdata.npy')
t = data[:, 0]
s = data[:, 1:]
In [5]:
%matplotlib inline
import matplotlib.pyplot as plt
plt.figure()
plt.plot(t, s[:, 0])
plt.xlabel('t [s]')
plt.ylabel('theta [rad]')
plt.savefig('pendulum_graph.png')
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