Über den Autor
Tom is chief scientist at Expert Human. He is an experienced, passionate computer scientist and programmer. He work as a freelance consultant, mentor and trainer, helping all kinds of companies to improve the quality and clarity of their approach to creating software products, usually on the web. Sometimes this means spending a month writing code for them; at other times it means encouraging them to rethink their product, re-educate their teams, rewrite their tests, or ruthlessly refactor their code. He has lectured on compilers at the University of Cambridge, helped organize the Ru3y Manor conference, and is a member and speaker of the London Ruby User Group.
Finally, you can learn computation theory and programming language design in an engaging, practical way. Understanding Computation explains theoretical computer science in a context you’ll recognize, helping you appreciate why these ideas matter and how they can inform your day-to-day programming.
Rather than use mathematical notation or an unfamiliar academic programming language like Haskell or Lisp, this book uses Ruby in a reductionist manner to present formal semantics, automata theory, and functional programming with the lambda calculus. It’s ideal for programmers versed in modern languages, with little or no formal training in computer science.
* Understand fundamental computing concepts, such as Turing completeness in languages
* Discover how programs use dynamic semantics to communicate ideas to machines
* Explore what a computer can do when reduced to its bare essentials
* Learn how universal Turing machines led to today’s general-purpose computers
* Perform complex calculations, using simple languages and cellular automata
* Determine which programming language features are essential for computation
* Examine how halting and self-referencing make some computing problems unsolvable
* Analyze programs by using abstract interpretation and type systems