Computation is essential to our modern understanding of nuclear systems. Although simple analytical models might guide our intuition, the complex- ity of the nuclear many-body problem and the ever-increasing precision of experimental results require large-scale numerical studies for a quantitative understanding. Despite their importance, many nuclear physics computations remain something of a black art. A practicing nuclear physicist might be familiar with one or another type of computation, but there is no way to systemati- cally acquire broad experience. Although computational methods and...