提交 3a93e5b5 编写于 作者: 盼小辉丶's avatar 盼小辉丶

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import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(-4, 4, 10005)
y = 5 * (x + 4.2) * (x + 4.) * (x - 2.5)
plt.plot(x, y, c = 'm', title='曲线')
plt.show()
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