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1 .mathモジュールのsin()やcos()関数を使い、
Sin波のグラフとCos波のグラフを描画してみてください。
numpyなどのモジュールを使ってデータを作っていただいても他の方法でも構いません。
import matplotlib.pyplot as plt
import numpy as np
x = np.arange(-5, 5, 0.1)
y1 = np.cos(x)
y2 = np.sin(x)
y3 = np.sin(-1 * x)
plt.plot(x, y1)
plt.plot(x, y2)
plt.plot(x, y3)
plt.show()
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