import numpy as np

# 1000是设置-1到2之间的数据量
x = np.linspace(-1, 2, 1000)
y = x*np.sin(10*np.pi*x) + 2.0

import matplotlib.pyplot as plt

plt.plot(x, y, color='blue')
plt.title('Function f(x) = x*sin(10*pi*x) + 2.0')
plt.show()