# 1 Introduction

This vignette is based on caracas version r packageVersion("caracas"). caracas is avavailable on CRAN at [https://cran.r-project.org/package=caracas] and on github at [https://github.com/r-cas/caracas].

# 2 Elementary matrix operations

## 2.1 Creating matrices / vectors

We now show different ways to create a symbolic matrix:

Note that a vector is a matrix in which one of the dimensions is one.

## 2.2 Matrix-matrix sum and product

Solve $$Ax=b$$ for $$x$$: