A>## Exercises A> A>1. Suppose we are analyzing a set of 4 samples. The first two samples are from a treatment group A and the second two samples are from a treatment group B. This design can be ...

Matrix algebra is a branch of mathematics that deals with the study of matrices and their properties. A matrix is a rectangular array of numbers, symbols, or expressions arranged in rows and columns.

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 ...