上QQ阅读APP看书，第一时间看更新
Getting ready
Start by importing numpy and matplotlib. You can view visualizations within an IPython Notebook using the %matplotlib inline command:
import numpy as np
import matplotlib.pyplot as plt
%matplotlib inline
Start by importing numpy and matplotlib. You can view visualizations within an IPython Notebook using the %matplotlib inline command:
import numpy as np
import matplotlib.pyplot as plt
%matplotlib inline