用Python绘制正弦曲线

 今天学了Python 绘制了一幅正弦曲线 哈哈

需要numpy  Python 库的支持

>>>import numpy as np
>>> import matplotlib.pyplot as plt
>>> x=np.arange(-np.pi,np.pi,0.01)
>>> y=np.sin(x)
>>> plt.plot(x,y,'g')
[<matplotlib.lines.Line2D object at 0x01AA20F0>]
>>> plt.show()