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posted @ 2022-11-20 12:06 逐光吧 阅读(25) 评论(0) 推荐(0)
摘要: import numpy as npdef sigmoid(x): return 1/(1+np.exp(-x))#f(x)=1/(1+exp(-x))def deriv_sigmoid(x): fx=sigmoid(x) return fx*(1-fx)#f'(x)=f(x)*(1-f(x))de 阅读全文
posted @ 2022-11-20 12:04 逐光吧 阅读(36) 评论(0) 推荐(0)