Seems like GE on a 2x2 matrix should be pretty darn fast.... especially if you use scalar * vector type operations.

Consider two p-variate populations, not necessarily Gaussian, with covariance matrices Σ₁ and Σ₂, respectively. Let S₁ and S₂ be the corresponding sample covariance matrices with degrees of freedom m ...

This is a preview. Log in through your library . Abstract Let A be an n × n matrix whose elements are independent random variables with standard normal distributions. As n → ∞, the expected number of ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

One of the essential dilemmas in our lives is choosing between what is urgent and what is important. Years ago, Stephen Covey placed both issues on a 2x2 matrix, giving new light by having us consider ...