放图仓库-2(函数图像)

激活函数

Sigmoid

绘图代码

#Sigmoid()函数
import numpy as np
import matplotlib.pyplot as plt

y = [1/(1+np.exp((-i))) for i in np.linspace(-10,10,101)]
plt.figure(figsize=(8,5),dpi=500)
plt.plot(np.linspace(-10,10,101),y)
plt.grid(alpha=.5)
plt.text(-7,0.7,"f(x) = Sigmoid(x)",fontsize=15,)

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