👋 Welcome

Hi, this is Razvan. I’m sharing these learning notes as a way to think more clearly about what I’m learning and to document the process as I go. Some are rough notes on topics I find challenging; others use AI as a study aid to revisit and organize core ideas.

Logistic Regression

Binary logistic regression as a Bernoulli GLM: setup, cross-entropy objective, and gradient-based fitting.

Linear Regression

Ordinary least squares as a linear mean model: setup, normal equations, and gradient updates.