Refactoring
Fix a logic error
Fix the error of sigmoid()
Use initializer list
Add const to data member
Use copy assign operator
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Change the name of parameter
Change names of data member:
Rename a member function
Separate some files
Rename teach(es) to training(s)
Use lvalue reference
Replace neural_network::transfer() from public to private
Rename the class name
Exchange the place of codes
Fix declaration
Add namespace neural_network
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