How a Neural Network Learns, Explained With a Spreadsheet
Build a single neuron in Excel: weights, bias, activation, error and gradient descent — step by step with formulas, so the idea behind deep…
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Neural networks explained with small, runnable code.
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Deep Learning
Neural networks explained with small, runnable code.
📄 2 articles⬇️ 2 with practice files🕒 Updated 28 Sep 2026
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A Neural Network From Scratch in 30 Lines of NumPy
Build and train a two-layer neural network in plain NumPy to solve XOR — forward pass, backpropagation and gradient descent explained line by line.
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