sigmoid函数

import matplotlib.pyplot as plt
import numpy as npdef sigmoid(x):return 1/(1+np.exp(-x))def plot_sigmoid():# param:起点，终点，间距x = np.arange(-10, 10, 0.1) #起点，终点，间距y = sigmoid(x)plt.plot(x, y)plt.show()if __name__ == '__main__':plot_sigmoid()

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