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AdvancedFeatured

Build a Numerical Optimization Engine

Finite differences, critical points, and gradient descent. No optimization libraries.

★★★★☆4–6 hoursPython · NumPy · Matplotlib
FunctionsDerivativesLoopsPython functionsNumPyMatplotlib

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ExpertFeatured

Build a Neural Network From Scratch

Forward prop, backprop, and gradient descent in NumPy — no PyTorch. Learn the Calc III math behind deep learning.

★★★★★6–8 hoursPython · NumPy · Matplotlib
Multivariable calculusGradients and the chain ruleMatrix multiplicationPython functionsNumPy arrays