Preface

When I first learned about Julia in early 2012, it was clear to me that this is a language that I've wanted for many years. The use of multiple dispatch made it very easy to express mathematical concepts, while the speed of the language made it feasible to express them in the Julia. I came for the elegance and stayed for the performance. On the other hand, some users come to Julia for the performance and stay for the elegance. Either way, in order to fully appreciate the power and beauty of the language, it needs to live up to its promise of high performance.

I hope this book will help Julia programmers at all levels to learn the design techniques and paradigms that produce fast Julia code. One of the nice things about Julia is that its performance characteristics are simple and easy to reason out. I hope this book will provide you with a framework to think about and analyze the performance of your own code.