> For the complete documentation index, see [llms.txt](https://cedrickchee.gitbook.io/knowledge/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cedrickchee.gitbook.io/knowledge/courses/fast.ai/machine-learning-intro-to-machine-learning-for-coders/2017-edition/lesson-9-sgd-neural-network-training-broadcasting.md).

# Lesson 9 - SGD; Neural Network Training; Broadcasting