Given an n x n square matrix A, if there exists another matrix B such that AB = BA = I (where I is the identity matrix), then B is called the inverse matrix of A and is denoted by A-1. The general ...

We publish the best academic work (that's too often lost to peer reviews & the TA's desk) to the global tech community We publish the best academic work (that's too often lost to peer reviews & the TA ...

Have you ever stared at a tangled web of Excel formulas, wondering if there’s a better way to make sense of it all? For many, Excel’s LAMBDA function feels like a cryptic puzzle—powerful but ...

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 ...

Once the domain of esoteric scientific and business computing, floating point calculations are now practically everywhere. From video games to large language models and kin, it would seem that a ...

If you take a look at your laptop's keyboard, you'll notice that the top row keys have icons printed above, with "F" and a number, like F1, F2, and so on, below each one. These are known as function ...

In its annual Digital Defense Report, covering trends from July 2023 to July 2024, Microsoft highlights the alarming rise in cyberattacks during growing geopolitical tensions. The report reveals that ...