I’ve become quite interested in numerical methods / scientific computing / applied math topics for a particular research question, and reading research paper...

I started off writing this post wanting to do some brief discussion of floating point arithmetic, inspired by what I am reading, Lecture 13 of Trefethen an...

This post is an annotated version a Linear Least Squares with Equality constraints (LSE for short) solution from Matrix Computations, Gene H. Golub and...

Given a \(m \times n\) matrix \(\mathbf{A}\), \(m \geq n\), what are the dimensions / sizes of the QR decomposition (full and reduced), and the SVD (fu...

I didn’t know the difference between a unitary and orthogonal matrix. They seemed to behave the same, so …?