Build a Python bot that reads Apex Legends patch notes and pings Discord the moment the Season 30 Marked tier list shifts. 12 steps, full code.

Build custom CAD designs with natural language prompts by integrating ChatGPT 6 Astra and FreeCAD. Output precise Python code for 3D printing.

Detailed python notes & code for lectures and exercises of Andrej Karpathy's course "Neural Networks: Zero to Hero." The course is focused on building neural networks from scratch. A complete neural ...

GitHub Blueprint — Zero to Hero learning platform for Git and GitHub. Covers version control, branching, pull requests, merge conflicts, GitHub Actions CI/CD, and GitHub Pages deployment. 10 hands-on ...

Python 控制流 ： autograd 支持动态图，可在前向过程中使用 if 、 while 等原生 Python 控制流且仍能正确反向传播； 自定义头梯度 ：将外部计算得到的头梯度传给 backward (dzdy) ，利用链式法则计算非 MXNet 部分的梯度。

这个过程完全在C++层完成，Python层只提供调度接口。 这就解释了为什么自定义 autograd.Function 必须重写 forward 和 backward 静态方法： forward 返回的是新Tensor（带新的 grad_fn ）， backward 返回的是输入梯度（供上游Node消费）。