题解 | Sigmoid 激活函数实现
Sigmoid 激活函数实现
https://www.nowcoder.com/practice/02420481885a43a5a921a417a5bbff33
import math
def sigmoid(z: float) -> float:
result = 1/(1+math.exp(-1*z))
return round(result, 4)
if __name__ == "__main__":
z = float(input())
print(f"{sigmoid(z):.4f}")
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