my math stuff

Column and Row Perspective

How to simplify matrix multiplication with the best perspectives (and also find certain inverse matrices fast!)

9 min read   ·   June 6, 2022

2022   ·   best     ·   linear-algebra  

New Ways to Calculate Normalized Solutions to Linear Constant-Coefficient Differential Equations

The fastest way for a computer, and a fast way by hand.

14 min read   ·   January 12, 2022

2022   ·   normalized-solutions     ·   differential-equations  

Systems of Linear Difference Equations

Like systems of ODEs, but discrete 👀

5 min read   ·   December 14, 2021

2021   ·   works-in-progress  

Matrix Exponential Formulas for 2x2 Matrices

Who needs eigenvectors?

9 min read   ·   December 13, 2021

2021   ·   best   matrix-exponentials   systems-of-differential-equations     ·   differential-equations  

2x2 Matrix Exponential Formulas with Differential Equations

7 min read   ·   December 8, 2021

2021   ·   matrix-exponentials     ·   archive