The Art of Computer Programming Science

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The Art of Computer Programming (sometimes known by its initials TAOCP) is a comprehensive monograph written by Donald Knuth that covers many kinds of programming algorithms and their analysis.

Knuth began the project, originally conceived as a single book with twelve chapters, in 1962. The first three volumes of what was then expected to be a seven-volume set were published in 1968, 1969, and 1973. The first installment of Volume 4 (a paperback fascicle) was published in 2005. The hardback Volume 4A, combining Volume 4, Fascicles 0-4, was published in 2011. Additional fascicle installments are planned for release approximately biannually; Volume 4, Fascicle 6 ("Satisfiability") was released in December 2015.

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History

After winning a Westinghouse Talent Search scholarship, Knuth enrolled at the Case Institute of Technology (now Case Western Reserve University), where his performance was so outstanding that the faculty voted to award him a master of science upon his completion of the baccalaureate degree. During his summer vacations, Knuth was hired by Burroughs to write compilers, earning more in his summer months than full professors did for an entire year. Such exploits made Knuth a topic of discussion among the mathematics department, which included Richard S. Varga.

Knuth started to write a book about compiler design in 1962, and soon realized that the scope of the book needed to be much larger. In June 1965, Knuth finished the first draft of what was originally planned to be a single volume of twelve chapters. His hand-written first-draft manuscript (completed in 1966) was 3,000 pages long: he had assumed that about five hand-written pages would translate into one printed page, but his publisher said instead that about 1½ hand-written pages translated to one printed page. This meant the book would be approximately 2,000 pages in length. The publisher was nervous about accepting such a project from a graduate student. At this point, Knuth received support from Richard S. Varga, who was the scientific advisor to the publisher. Varga was visiting Olga Taussky-Todd and John Todd at Caltech. With Varga's enthusiastic endorsement, the publisher accepted Knuth's expanded plans. In its expanded version, the book would be published in seven volumes, each with just one or two chapters. Due to the growth in the material, the plan for Volume 4 has since expanded to include Volumes 4A, 4B, 4C, 4D, and possibly more.

In 1976, Knuth prepared a second edition of Volume 2, requiring it to be typeset again, but the style of type used in the first edition (called hot type) was no longer available. In 1977, he decided to spend some time creating something more suitable. Eight years later, he returned with T_EX, which is currently used for all volumes.

The offer of a so-called Knuth reward check worth "one hexadecimal dollar" (100_HEX base 16 cents, in decimal, is $2.56) for any errors found, and the correction of these errors in subsequent printings, has contributed to the highly polished and still-authoritative nature of the work, long after its first publication. Another characteristic of the volumes is the variation in the difficulty of the exercises. The level of difficulty ranges from "warm-up" exercises to unsolved research problems. Knuth's dedication reads:

This series of books is affectionately dedicated
to the Type 650 computer once installed at
Case Institute of Technology,
with whom I have spent many pleasant evenings.

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Assembly language in the book

All examples in the books use a language called "MIX assembly language", which runs on the hypothetical MIX computer. Currently, the MIX computer is being replaced by the MMIX computer, which is a RISC version. Software such as GNU MDK exists to provide emulation of the MIX architecture. Knuth considers the use of assembly language necessary for the speed and memory usage of algorithms to be judged.

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Critical response

Knuth was awarded the 1974 Turing Award "for his major contributions to the analysis of algorithms [...], and in particular for his contributions to the 'art of computer programming' through his well-known books in a continuous series by this title." American Scientist has included this work among "100 or so Books that shaped a Century of Science", referring to the twentieth century, and within the computer science community it is regarded as the first and still the best comprehensive treatment of its subject. Covers of the third edition of Volume 1 quote Bill Gates as saying, "If you think you're a really good programmer... read (Knuth's) Art of Computer Programming... You should definitely send me a résumé if you can read the whole thing." The New York Times referred to it as "the profession's defining treatise".

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Volumes

• Volume 1 - Fundamental Algorithms

• Volume 2 - Seminumerical Algorithms

• Volume 3 - Sorting and Searching

• Volume 4 - Combinatorial Algorithms (chapters 7 and 8 released in several subvolumes)

• Volume 5 - Syntactic Algorithms (as of 2015, estimated for release in 2025)

• Volume 6 - The Theory of Context-Free Languages (planned)
• Volume 7 - Compiler Techniques (planned)

Chapter outline of published volumes

• Volume 1 - Fundamental Algorithms
  • Chapter 1 - Basic concepts
    • 1.1. Algorithms
    • 1.2. Mathematical Preliminaries
      • 1.2.1. Mathematical Induction
      • 1.2.2. Numbers, Powers, and Logarithms
      • 1.2.3. Sums and Products
      • 1.2.4. Integer Functions and Elementary Number Theory
      • 1.2.5. Permutations and Factorials
      • 1.2.6. Binomial Coefficients
      • 1.2.7. Harmonic Numbers
      • 1.2.8. Fibonacci Numbers
      • 1.2.9. Generating Functions
      • 1.2.10. Analysis of an Algorithm
      • 1.2.11. Asymptotic Representations
        • 1.2.11.1. The O-notation
        • 1.2.11.2. Euler's summation formula
        • 1.2.11.3. Some asymptotic calculations
    • 1.3 MMIX (MIX in the hardback copy but updated by fascicle 1)
      • 1.3.1. Description of MMIX
      • 1.3.2. The MMIX Assembly Language
      • 1.3.3. Applications to Permutations
    • 1.4. Some Fundamental Programming Techniques
      • 1.4.1. Subroutines
      • 1.4.2. Coroutines
      • 1.4.3. Interpretive Routines
        • 1.4.3.1. A MIX simulator
        • 1.4.3.2. Trace routines
      • 1.4.4. Input and Output
      • 1.4.5. History and Bibliography
  • Chapter 2 - Information Structures
    • 2.1. Introduction
    • 2.2. Linear Lists
      • 2.2.1. Stacks, Queues, and Deques
      • 2.2.2. Sequential Allocation
      • 2.2.3. Linked Allocation
      • 2.2.4. Circular Lists
      • 2.2.5. Doubly Linked Lists
      • 2.2.6. Arrays and Orthogonal Lists
    • 2.3. Trees
      • 2.3.1. Traversing Binary Trees
      • 2.3.2. Binary Tree Representation of Trees
      • 2.3.3. Other Representations of Trees
      • 2.3.4. Basic Mathematical Properties of Trees
        • 2.3.4.1. Free trees
        • 2.3.4.2. Oriented trees
        • 2.3.4.3. The "infinity lemma"
        • 2.3.4.4. Enumeration of trees
        • 2.3.4.5. Path length
        • 2.3.4.6. History and bibliography
      • 2.3.5. Lists and Garbage Collection
    • 2.4. Multilinked Structures
    • 2.5. Dynamic Storage Allocation
    • 2.6. History and Bibliography
• Volume 2 - Seminumerical Algorithms
  • Chapter 3 - Random Numbers
    • 3.1. Introduction
    • 3.2. Generating Uniform Random Numbers
      • 3.2.1. The Linear Congruential Method
        • 3.2.1.1. Choice of modulus
        • 3.2.1.2. Choice of multiplier
        • 3.2.1.3. Potency
      • 3.2.2. Other Methods
    • 3.3. Statistical Tests
      • 3.3.1. General Test Procedures for Studying Random Data
      • 3.3.2. Empirical Tests
      • 3.3.3. Theoretical Tests
      • 3.3.4. The Spectral Test
    • 3.4. Other Types of Random Quantities
      • 3.4.1. Numerical Distributions
      • 3.4.2. Random Sampling and Shuffling
    • 3.5. What Is a Random Sequence?
    • 3.6. Summary
  • Chapter 4 - Arithmetic
    • 4.1. Positional Number Systems
    • 4.2. Floating Point Arithmetic
      • 4.2.1. Single-Precision Calculations
      • 4.2.2. Accuracy of Floating Point Arithmetic
      • 4.2.3. Double-Precision Calculations
      • 4.2.4. Distribution of Floating Point Numbers
    • 4.3. Multiple Precision Arithmetic
      • 4.3.1. The Classical Algorithms
      • 4.3.2. Modular Arithmetic
      • 4.3.3. How Fast Can We Multiply?
    • 4.4. Radix Conversion
    • 4.5. Rational Arithmetic
      • 4.5.1. Fractions
      • 4.5.2. The Greatest Common Divisor
      • 4.5.3. Analysis of Euclid's Algorithm
      • 4.5.4. Factoring into Primes
    • 4.6. Polynomial Arithmetic
      • 4.6.1. Division of Polynomials
      • 4.6.2. Factorization of Polynomials
      • 4.6.3. Evaluation of Powers
      • 4.6.4. Evaluation of Polynomials
    • 4.7. Manipulation of Power Series
• Volume 3 - Sorting and Searching
  • Chapter 5 - Sorting
    • 5.1. Combinatorial Properties of Permutations
      • 5.1.1. Inversions
      • 5.1.2. Permutations of a Multiset
      • 5.1.3. Runs
      • 5.1.4. Tableux and Involutions
    • 5.2. Internal sorting
      • 5.2.1. Sorting by Insertion
      • 5.2.2. Sorting by Exchanging
      • 5.2.3. Sorting by Selection
      • 5.2.4. Sorting by Merging
      • 5.2.5. Sorting by Distribution
    • 5.3. Optimum Sorting
      • 5.3.1. Minimum-Comparison Sorting
      • 5.3.2. Minimum-Comparison Merging
      • 5.3.3. Minimum-Comparison Selection
      • 5.3.4. Networks for Sorting
    • 5.4. External Sorting
      • 5.4.1. Multiway Merging and Replacement Selection
      • 5.4.2. The Polyphase Merge
      • 5.4.3. The Cascade Merge
      • 5.4.4. Reading Tape Backwards
      • 5.4.5. The Oscillating Sort
      • 5.4.6. Practical Considerations for Tape Merging
      • 5.4.7. External Radix Sorting
      • 5.4.8. Two-Tape Sorting
      • 5.4.9. Disks and Drums
    • 5.5. Summary, History, and Bibliography
  • Chapter 6 - Searching
    • 6.1. Sequential Searching
    • 6.2. Searching by Comparison of Keys
      • 6.2.1. Searching an Ordered Table
      • 6.2.2. Binary Tree Searching
      • 6.2.3. Balanced Trees
      • 6.2.4. Multiway Trees
    • 6.3. Digital Searching
    • 6.4. Hashing
    • 6.5. Retrieval on Secondary Keys
• Volume 4A - Combinatorial Algorithms, Part 1
  • Chapter 7 - Combinatorial Searching
    • 7.1. Zeros and Ones
      • 7.1.1. Boolean Basics
      • 7.1.2. Boolean Evaluation
      • 7.1.3. Bitwise Tricks and Techniques
      • 7.1.4. Binary Decision Diagrams
    • 7.2. Generating All Possibilities
      • 7.2.1. Generating Basic Combinatorial Patterns
        • 7.2.1.1. Generating all n-tuples
        • 7.2.1.2. Generating all permutations
        • 7.2.1.3. Generating all combinations
        • 7.2.1.4. Generating all partitions
        • 7.2.1.5. Generating all set partitions
        • 7.2.1.6. Generating all trees
        • 7.2.1.7. History and further references

Outline of unpublished sections

• Volume 4B, 4C, 4D
  • Mathematical Preliminaries Redux
  • Chapter 7 - Combinatorial Searching (cont'd)
    • 7.2. Generating all possibilities (cont'd)
      • 7.2.2. Backtrack programming
        • 7.2.2.1. Dancing links
        • 7.2.2.2. Satisfiability
        • 7.2.2.3. Constraint satisfaction
        • 7.2.2.4. Hamiltonian paths
        • 7.2.2.5. Cliques
        • 7.2.2.6. Covers
        • 7.2.2.7. Squares
        • 7.2.2.8. A potpourri of puzzles
        • 7.2.2.9. Estimating backtrack costs
      • 7.2.3. Generating inequivalent patterns
    • 7.3. Shortest paths
    • 7.4. Graph algorithms
      • 7.4.1. Components and traversal
      • 7.4.2. Special classes of graphs
      • 7.4.3. Expander graphs
      • 7.4.4. Random graphs
    • 7.5. Network algorithms
      • 7.5.1. Distinct representatives
      • 7.5.2. The assignment problem
      • 7.5.3. Network flows
      • 7.5.4. Optimum subtrees
      • 7.5.5. Optimum matching
      • 7.5.6. Optimum orderings
    • 7.6. Independence theory
      • 7.6.1. Independence structures
      • 7.6.2. Efficient matroid algorithms
    • 7.7. Discrete dynamic programming
    • 7.8. Branch-and-bound techniques
    • 7.9. Herculean tasks (aka NP-hard problems)
    • 7.10. Near-optimization
  • Chapter 8 - Recursion
• Volume 5 - Syntactic Algorithms (as of 2015, estimated for release in 2025)
  • Chapter 9 - Lexical scanning (includes also string search and data compression)
  • Chapter 10 - Parsing techniques
• Volume 6 - The Theory of Context-free Languages
• Volume 7 - Compiler Techniques

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English editions

Current editions

These are the current editions in order by volume number:

• Volume 1: Fundamental Algorithms. Third Edition (Reading, Massachusetts: Addison-Wesley, 1997), xx+650pp. ISBN 0-201-89683-4
• Volume 1, Fascicle 1: MMIX - A RISC Computer for the New Millennium. (Addison-Wesley, February 14, 2005) ISBN 0-201-85392-2 (will be in the fourth edition of volume 1)
• Volume 2: Seminumerical Algorithms. Third Edition (Reading, Massachusetts: Addison-Wesley, 1997), xiv+762pp. ISBN 0-201-89684-2
• Volume 3: Sorting and Searching. Second Edition (Reading, Massachusetts: Addison-Wesley, 1998), xiv+780pp.+foldout. ISBN 0-201-89685-0
• Volume 4A: Combinatorial Algorithms, Part 1. First Edition (Reading, Massachusetts: Addison-Wesley, 2011), xv+883pp. ISBN 0-201-03804-8
• The Art of Computer Programming, Volumes 1-4A Boxed Set 3rd Edition (Reading, Massachusetts: Addison-Wesley, 2011), 3168pp. ISBN 0-321-75104-3
• Volume 4B, Pre-fascicle 5A: Mathematical Preliminaries Redux (available for download)
• Volume 4B, Pre-fascicle 5B: Introduction to Backtracking (available for download)
• Volume 4B, Pre-fascicle 5C: Dancing Links (available for download)
• Volume 4B, Pre-fascicle 6A: A Draft of Section 7.2.2.2: Satisfiability (available for download)

Previous editions

Complete volumes

These volumes were superseded by newer editions and are in order by date.

• Volume 1, first edition, 1968, xxi+634pp, ISBN 0-201-03801-3.
• Volume 2, first edition, 1969, xi+624pp, ISBN 0-201-03802-1.
• Volume 3, first edition, 1973, xi+723pp+foldout, ISBN 0-201-03803-X
• Volume 1, second edition, 1973, xxi+634pp, ISBN 0-201-03809-9.
• Volume 2, second edition, 1981, xiii+ 688pp, ISBN 0-201-03822-6.

Fascicles

Volume 4's fascicles 0-4 were revised and published as Volume 4A.

• Volume 4, Fascicle 0: Introduction to combinatorial algorithms and Boolean functions, (Addison-Wesley Professional, April 28, 2008) vi+240pp, ISBN 0-321-53496-4
• Volume 4, Fascicle 1: Bitwise tricks & techniques; Binary decision diagrams (Addison-Wesley Professional, March 27, 2009) viii+260pp, ISBN 0-321-58050-8
• Volume 4, Fascicle 2: Generating All tuples and permutations, (Addison-Wesley, February 14, 2005) v+127pp, ISBN 0-201-85393-0
• Volume 4, Fascicle 3: Generating all combinations and partitions. (Addison-Wesley, July 26, 2005) vi+150pp, ISBN 0-201-85394-9
• Volume 4, Fascicle 4: Generating all trees--History of combinatorial generation, (Addison-Wesley, February 6, 2006) vi+120pp, ISBN 0-321-33570-8
• Volume 4, Fascicle 5: Mathematical Preliminaries Redux; Backtracking; Dancing Links, (Addison-Wesley, June 16, 2017) 320pp, ISBN 978-0-13-467179-6
• Volume 4, Fascicle 6: Satisfiability, (Addison-Wesley, December 8, 2015) xiii+310pp, ISBN 978-0-13-439760-3

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In popular culture

Volume 2, Seminumerical Algorithms and Volume 4A Combinatorial Algorithms appear in the film Pixels.

Source of the article : Wikipedia