This short course will give a basic introduction to Mathematica. This is a high-level language that is perhaps best known for symbolic computation, but which includes a comprehensive range of numerical, graphical and statistical resources (see IST Austria has a site licence that allows unlimited use, including on the cluster. The course will give an overview of what is available within Mathematica, and how to get started with the system. Programming in Mathematica is quite different from traditional languages, and is arguably more powerful, especially for exploratory analysis.