Over the last few issues, we've been talking about the math entity called a matrix. I've given examples of how matrices are useful and how matrix algebra can simplify complicated problems. A messy ...

Inverting a matrix is one of the most common tasks in data science and machine learning. In this article I explain why inverting a matrix is very difficult and present code that you can use as-is, or ...

The inputs to the MATTRIB subroutine are as follows: The values of the associated matrices are not looked up until they are needed. Thus, they need not have values at the time the MATTRIB statement is ...