Linear Equations
Covers section 1 chapter 1 of Lay's Linear Algebra and Its Application
6 posts total
Covers section 1 chapter 1 of Lay's Linear Algebra and Its Application
Geometric intuition for when a linear system has one solution, none, or infinitely many — and how the null space describes that whole family of solutions. With an interactive visualizer.
Matrices aren't just grids of numbers — they represent linear maps. Composition, rotation, scaling, and why matrix multiplication is defined the way it is.
The building blocks — vectors, linear combinations, span, and what it means for a set of vectors to be a vector space.
A deep dive into the transformer architecture — from the core self-attention mechanism to why positional encodings matter, with interactive Python visualizations.
Descartes drew a sharp line between mind and matter. Modern AI systems blur it. Does substrate matter for consciousness? A reading of Chalmers, Dennett, and some uncomfortable questions.