Understanding Computation (61 page)
- values
- about,
Values
,
Small-Step Semantics - absolute,
Abstraction: Multiplying Signs - assigning to local variables,
Local Variables and Assignment - basic data,
Basic Data - comma-separated,
Data Structures - data structures,
Data Structures - objects and,
Objects and Methods - procs,
Procs - range of,
Data Structures
- about,
- variables
- constants as,
Defining Constants - local,
Local Variables and Assignment - parallel assignment,
Local Variables and Assignment - replacing in expressions,
Replacing variables
–
Replacing variables
- constants as,
- variadic methods,
Variadic Methods - virtual machines,
Expressions
- W3C,
Applications - Wadler, Philip,
Applications - while expression,
Control Flow - Wolfram, Stephen,
Rule 110
–
Wolfram’s 2,3 Turing Machine
,
Depressing Implications - Wolfram’s 2,3 Turing machine,
Wolfram’s 2,3 Turing Machine
- XML documents,
Code Is Data - XQuery specification,
Applications - XSLT document-transformation language,
Applications
,
Code Is Data
- Y combinator,
Numeric Operations - yield keyword,
Blocks
- Z combinator,
Numeric Operations
Tom is a computer scientist and programmer, and the founder of Codon, a digital product consultancy in London. He works as a consultant, mentor and trainer, helping companies to improve the quality and clarity of their approach to creating software products, usually on the web. He has lectured on optimizing compilers at the University of Cambridge, co-organizes the Ruby Manor conference, and is a member of the London Ruby User Group.
The animal on the cover of
Understanding Computation
is the bear paw
clam (
Hippopus hippopus
). The bear paw clam, also known as the horse’s hoof
clam because of its shape and the strawberry clam for its reddish color, is part of the giant
clam subfamily Tridacnidae, which in turn is part of the family Cardiidae. The bear paw clam
mostly lives in reefs in the Indo-Pacific area.
The bear paw clam has two identical and symmetrical hinged sections. It also has deep ridges
and a distinctive red-white color pattern. It feeds on plankton in the surrounding area by
staying in one location and filtering surrounding water using its siphons.
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Mike Loukides
Rachel Roumeliotis
| Revision History | |
| 2013-05-10 | First release |
| 2013-05-31 | Second release |
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