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1 import matplotlib.pyplot as plt
2 import numpy as np
3
4
5 Fs = 8000
6 f = 3
7 sample = 8000
8 x = np.arange(sample)
9 y = np.sin(2 * np.pi * f * x / Fs)
10 plt.plot(x, y)
11 plt.xlabel('sample(n)')
12 plt.ylabel('voltage(V)')
13 plt.show()
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