# sonadorje > I will continue to share my knowledge of linear algebra, hoping we can progress together. ## Recent Posts - [What is an augmented matrix?](https://paragraph.com/@sonadorje/what-is-an-augmented-matrix): Understanding Augmented Matrices: A Clear Path to Solving Systems of Linear Equations - [What is the characteristic polynomial of a matrix?](https://paragraph.com/@sonadorje/what-is-the-characteristic-polynomial-of-a-matrix): Unraveling the Mysteries of the Characteristic Polynomial: A Key Tool in Linear Algebra - [What is a nilpotent matrix?](https://paragraph.com/@sonadorje/what-is-a-nilpotent-matrix) ## Blog Information - [Homepage](https://paragraph.com/@sonadorje/): Main blog page - [RSS Feed](https://api.paragraph.com/blogs/rss/@sonadorje): Subscribe to updates ## Optional - [All Posts](https://paragraph.com/@sonadorje/): Complete post archive - [Sitemap](https://paragraph.com/@sonadorje/sitemap-index.xml): XML sitemap for crawlers