Robuta

https://www.mathworks.com/matlabcentral/cody/problems/58877-neural-net-image-convolution-return-only-valid-portion-of-conv2
neural netimageconvolutionreturnvalid
https://github.com/karpathy/micrograd
A tiny scalar-valued autograd engine and a neural net library on top of it with PyTorch-like API - karpathy/micrograd
githubkarpathytinyscalarvalued
https://singularityhub.com/2015/08/21/why-this-neural-net-thinks-the-starship-enterprise-is-a-waffle-iron/
This neural net might know a fox from a cat, but distinguishing deep space from a roundworm? Apparently, not so much.
the starship enterpriseneural netthinks