Andrew Ng 深度学习编程作业 1-2

sigmoid(x) = \frac{1}{1+e^{-x}}
sigmoid(x) = \frac{1}{1+e^{-x}}
sigmoid(x) = \frac{1}{1+e^{-x}}

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转载自blog.csdn.net/u013068717/article/details/80567057