Algebra involves the use of letters in mathematics. These letters are unknowns and can represent either a single unknown number or a range of unknown numbers. Sometimes algebraic expressions can be ...

"This tutorial comes as a [Jupyter notebook](https://en.wikipedia.org/wiki/Project_Jupyter) \n", "([ipynb](https://github.com/soehms/database_cubic_hecke/blob/main ...

in a bash shell located in a directory where you downloaded the cubic_hecke_algebra_tutorial.ipynb file (or rather the entire contents of the folder containing this file, so that local links work).

Two linear expressions can be expanded, and then simplified by collecting like terms, if there are any. Linear expressions have no terms with power of 2 or higher. For example, 15x – 4y is a linear ...