初识机器学习 | 深入探索梯度下降算法的核心概念

    import numpy as np
    import matplotlib.pyplot as plt
    
    %matplotlib
    %matplotlib inline
    %config InlineBackend.figure_format = 'retina'
    
    
      
      
      
      
      
      
    

    Using matplotlib backend: MacOSX
    
    
      
    

    x = np.linspace(-1,6,200)
    y = (x - 2.5)**2 - 1
    
    plt.plot(x, y)
    plt.show()