👏Hey everyone, Leo here. I'm the solo developer behind Matrix Lab.

I built this because of a specific frustration: every time I learned linear algebra from videos or textbooks, I could follow along, nod, and forget everything a week later. Watching someone else move vectors around never made the ideas stick for me.

So Matrix Lab has no videos. Each of the 56 levels is a small canvas experiment: drag a vector's tip to hit a target, stretch a column vector until the determinant hits zero, rotate a grid and watch the matrix columns move with it. The concept lands because your hand did it.

What's inside:

- 12 chapters, from "place your first vector" to eigenvectors, dot and cross products, and 3D space
- A live matrix panel showing determinant, rank, and volume scale as you drag
- A sandbox mode where you can edit any matrix and watch the space transform

The first 7 levels are free, no signup. The full course is a one-time $19.99, lifetime access, works on 2 devices.

Try a level before you read anything else: https://matrixguts.com/

Happy to answer anything about how it's built or why I made specific teaching choices.

Matrix Lab

Drag matrices around in space until linear algebra clicks

Drag matrices around in space until linear algebra clicks