Show HN: I wrote my first neural network
allenng Saturday, March 14, 2026
I have been interested in neural nets since the 90's. I've done quite a bit of reading, but never gotten around to writing code. I used Gemini in place of Wikipedia to fill in the gaps of my knowledge. The coolest part of this was learning about dual numbers. You can see in early commits that I did not yet know about auto-diff; I was thinking I'd have to integrate a CAS library or something. Now, I'm off to play with TensorFlow.
Summary
This article provides a detailed implementation of the perceptron algorithm, a fundamental machine learning model for binary classification. It covers the mathematical foundations, step-by-step implementation, and practical applications of the perceptron in a clear and concise manner.
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github.com