This is a from-scratch, homegrown MNIST digit-recognition AI. Accuracy depends on how much training is ran. Completely plug and play, just download the code + dataset and go train the model. On testing, it will show the handwritten digit and print the expected value with confidence/accuracy in the console. Was made without any machine learning algorithms, math notes are attatched.

https://medium.com/p/71084c6b8f91 (article explaining absolutely everything involved)