Structure and Interpretation of Computer Programs, Comparison Edition

Comparison Edition

Color highlighting:

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Scheme █

Javascript █

Explanation █

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Interactive SICP JS

Harold Abelson and Gerald Jay Sussman
with Julie Sussman original authors

Martin Henz and Tobias Wrigstad
with Julie Sussmanadapters to JavaScript

Chan Ger Hean, He Xinyue, Liu Hang, Feng Piaopiao, Jolyn Tan and Wang Qiandevelopers of Comparison Edition

Content

Foreword

Foreword to Structure and Interpretation of Computer Programs, 1984

Preface

Prefaces to Structure and Interpretation of Computer Programs, 1996 & 1984

Acknowledgments

➤ ▼ 1 Building Abstractions with Procedures Functions

➤ ▼ 1.1 The Elements of Programming

1.1.1 Expressions

1.1.2 Naming and the Environment

1.1.3 Evaluating Combinations Operator Combinations

1.1.4 Compound Procedures Functions

1.1.5 The Substitution Model for Procedure Function Application

1.1.6 Conditional Expressions and Predicates

1.1.7 Example: Square Roots by Newton's Method

1.1.8 Procedures Functions as Black-Box Abstractions

➤ ▼ 1.2 Procedures Functions and the Processes They Generate

1.2.1 Linear Recursion and Iteration

1.2.2 Tree Recursion

1.2.3 Orders of Growth

1.2.4 Exponentiation

1.2.5 Greatest Common Divisors

1.2.6 Example: Testing for Primality

➤ ▼ 1.3 Formulating Abstractions with Higher-Order Procedures Functions

1.3.1 Procedures Functions as Arguments

1.3.2 Constructing Procedures using Lambda Constructing Functions using Lambda Expressions

1.3.3 Procedures Functions as General Methods

1.3.4 Procedures Functions as Returned Values

➤ ▼ 2 Building Abstractions with Data

➤ ▼ 2.1 Introduction to Data Abstraction

2.1.1 Example: Arithmetic Operations for Rational Numbers

2.1.2 Abstraction Barriers

2.1.3 What Is Meant by Data?

2.1.4 Extended Exercise: Interval Arithmetic

➤ ▼ 2.2 Hierarchical Data and the Closure Property

2.2.1 Representing Sequences

2.2.2 Hierarchical Structures

2.2.3 Sequences as Conventional Interfaces

2.2.4 Example: A Picture Language

➤ ▼ 2.3 Symbolic Data

2.3.1 Quotation Strings

2.3.2 Example: Symbolic Differentiation

2.3.3 Example: Representing Sets

2.3.4 Example: Huffman Encoding Trees

➤ ▼ 2.4 Multiple Representations for Abstract Data

2.4.1 Representations for Complex Numbers

2.4.2 Tagged data

2.4.3 Data-Directed Programming and Additivity

➤ ▼ 2.5 Systems with Generic Operations

2.5.1 Generic Arithmetic Operations

2.5.2 Combining Data of Different Types

2.5.3 Example: Symbolic Algebra

➤ ▼ 3 Modularity, Objects, and State

➤ ▼ 3.1 Assignment and Local State

3.1.1 Local State Variables

3.1.2 The Benefits of Introducing Assignment

3.1.3 The Costs of Introducing Assignment

➤ ▼ 3.2 The Environment Model of Evaluation

3.2.1 The Rules for Evaluation

3.2.2 Applying Simple Procedures Functions

3.2.3 Frames as the Repository of Local State

3.2.4 Internal Definitions Declarations

➤ ▼ 3.3 Modeling with Mutable Data

3.3.1 Mutable List Structure

3.3.2 Representing Queues

3.3.3 Representing Tables

3.3.4 A Simulator for Digital Circuits

3.3.5 Propagation of Constraints

➤ ▼ 3.4 Concurrency: Time Is of the Essence

3.4.1 The Nature of Time in Concurrent Systems

3.4.2 Mechanisms for Controlling Concurrency

➤ ▼ 3.5 Streams

3.5.1 Streams Are Delayed Lists

3.5.2 Infinite Streams

3.5.3 Exploiting the Stream Paradigm

3.5.4 Streams and Delayed Evaluation

3.5.5 Modularity of Functional Programs and Modularity of Objects

➤ ▼ 4 Metalinguistic Abstraction

➤ ▼ 4.1 The Metacircular Evaluator

4.1.1 The Core of the Evaluator

4.1.2 Representing Expressions Components

4.1.3 Evaluator Data Structures

4.1.4 Running the Evaluator as a Program

4.1.5 Data as Programs

4.1.6 Internal Definitions Declarations

4.1.7 Separating Syntactic Analysis from Execution

➤ ▼ 4.2 Variations on a Scheme: Lazy Evaluation

4.2.1 Normal Order and Applicative Order

4.2.2 An Interpreter with Lazy Evaluation

4.2.3 Streams as Lazy Lists

➤ ▼ 4.3 Variations on a Scheme: Nondeterministic Computing

4.3.1 Amb and Search Search and amb

4.3.2 Examples of Nondeterministic Programs

4.3.3 Implementing the Amb amb Evaluator

➤ ▼ 4.4 Logic Programming

4.4.1 Deductive Information Retrieval

4.4.2 How the Query System Works

4.4.3 Is Logic Programming Mathematical Logic?

4.4.4 Implementing the Query System

➤ ▼ 5 Computing with Register Machines

➤ ▼ 5.1 Designing Register Machines

5.1.1 A Language for Describing Register Machines

5.1.2 Abstraction in Machine Design

5.1.3 Subroutines

5.1.4 Using a Stack to Implement Recursion

5.1.5 Instruction Summary

➤ ▼ 5.2 A Register-Machine Simulator

5.2.1 The Machine Model

5.2.2 The Assembler

5.2.3 Generating Execution Procedures for Instructions Instructions and Their Execution Functions

5.2.4 Monitoring Machine Performance

➤ ▼ 5.3 Storage Allocation and Garbage Collection

5.3.1 Memory as Vectors

5.3.2 Maintaining the Illusion of Infinite Memory

➤ ▼ 5.4 The Explicit-Control Evaluator

5.4.1 The Core of the Explicit-Control Evaluator The Dispatcher and Basic Evaluation

5.4.2 Sequence Evaluation and Tail Recursion Evaluating Function Applications

5.4.3 Conditionals, Assignments and Definitions Blocks, Assignments, and Declarations

5.4.4 Running the Evaluator

➤ ▼ 5.5 Compilation

5.5.1 Structure of the Compiler

5.5.2 Compiling Expressions Components

5.5.3 Compiling Combinations Applications and Return Statements

5.5.4 Combining Instruction Sequences

5.5.5 An Example of Compiled Code

5.5.6 Lexical Addressing

5.5.7 Interfacing Compiled Code to the Evaluator

References

About the SICP JS Project

The text of the original SICP 2nd edition is licensed by Harold Abelson and Gerald Jay Sussman under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA). The text of the JavaScript adaptation is licensed by Harold Abelson, Gerald Jay Sussman, Martin Henz, and Tobias Wrigstad, also under CC BY-SA. The figures in the JavaScript adaptation are derived from figures created by Andres Raba in 2015 and are licensed by Martin Henz and Tobias Wrigstad, also under CC BY-SA.

GPL 3

All Scheme programs in this work are licensed by Harold Abelson and Gerald Jay Sussman under the GNU General Public License Version 3 (GPLv3). All JavaScript programs in this work are licensed by Martin Henz and Tobias Wrigstad, also under GPLv3.