Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

Simultaneous equations are two linear equations that can be solved using bar models. By remembering that the same letter will always have the same value we can work out the missing values. To solve ...

An algebraic equation contains one or more letters in it. Each letter in the equation is called a variable. A variable can change in value. We guess at different values for each letter until our ...

This project demonstrates the full workflow of portfolio construction for 10 large NYSE stocks, combining Fama–French 3-factor regression analysis with Markowitz mean-variance optimization in Excel.