← Curriculum map
L15 · Phase 4 · Variable, self-paced

External Mathematics Pathway

I want to actually be able to derive this, not just follow along — where do I go?

Curated resources

Every resource here is linked to a specific in-course gap — nothing is included just because it’s popular. Open from here, close whenever, and come back to the main course at any point.

Vectors, what even are they?

3Blue1BrownCurious → Technical~10 min videoFreeSupports L02, L03, L14

The clearest visual intuition for what a vector actually is, before Similarity and the Dot Product formalises it.

Vectors and dot products

Khan AcademyTechnical~1 hr course unitFreeSupports L03, L14

Practice problems if you want to compute dot products by hand until they're automatic.

Neural Networks series

3Blue1BrownCurious → Mathematical~1 hr, 4 videosFreeSupports L04, L05, L14

Visual walkthroughs of weighted sums, gradient descent and backpropagation, in the same spirit as this course.

Gradient Descent, Step-by-Step

StatQuestMathematical~24 min videoFreeSupports L05, L14

A fully worked numerical example of gradient descent, for anyone who wants the arithmetic spelled out completely.

Attention in transformers, visually explained

3Blue1BrownTechnical → Mathematical~26 min videoFreeSupports L08, L09, L14

The deepest freely available visual treatment of the scaled dot-product attention equation.

Machine Learning Crash Course

GoogleEveryday → TechnicalSelf-paced, ~15 hrsFreeSupports L04, L05, L06, L07, L08, L09, L10, L11, L12, L13, L14

A structured, practitioner-oriented course covering the same core mechanics this curriculum introduces conceptually.

Depth ladder

Not applicable at this level — this page is opt-in from Curious depth upward, for anyone who wants to go further than a recap.

Knowledge check

Not applicable — self-directed; entry and exit are your own choice.