Note that this is one chapter of a good intro "online book" to neural nets. http://neuralnetworksanddeeplearning.com/index.html http://neuralnetworksanddeeple

Note that this is one chapter of a good intro "online book" to neural nets. http://neuralnetworksanddeeplearning.com/index.html http://neuralnetworksanddeeplearning.com/index.html is a good place to start.