trekhleb--homemade-machine-learning
Oleksii Trekhleb
10 行
155 B
Python
10 行
155 B
Python
"""Sigmoid function"""
|
|
|
|
import numpy as np
|
|
|
|
|
|
def sigmoid(matrix):
|
|
"""Applies sigmoid function to NumPy matrix"""
|
|
|
|
return 1 / (1 + np.exp(-matrix))
|