This repository is related to a video about principles of neural networks, which demonstrates how to write a simple neural network in 100 lines of code and implement handwritten digit recognition without using a framework. 这是一个与神经网络原理讲解视频, 相配套的项目, 演示在不使用框架的情况下, 用约100行代码编写简易的神经网络, 并借此实现手写数字识别. - View it on GitHub