- Learning J
- J for C Programmers
- J Reference Card
- Brief Reference
- Computers and Mathematical Notation
- Easy J
- Fractals, Visualization & J, 3rd ed.
- J - The Natural Language for Analytic Computing
- Mathematical Computing in J: Volume 1, Introduction
- Math for the Layman
- Exploring Math
- Arithmetic
- Calculus
- Concrete Math Companion
- J Phrases
Learning J
An excellent introduction and overview of the core J language.
Roger Stokes - Copyright Roger Stokes Available in a J installation or ![[WWW]](/wiki/modern/img/moin-www.png){kind=small}
here. New version available here or as a PDF at Skip Cave's site.
J for C Programmers
This book is a guide for making the transition from scalar languages to J. Early chapters describe J in terms of C, but the reader is weaned off C as the book progresses, and many J programmers ignorant of C have found the book a useful companion.
Henry Rich - Copyright Henry Rich
Available in a J installation (via Help|Help), in indexed pdf form, or as a Microsoft Word 2003 file. The book makes reference to a J script file.
The book has been translated to German, see j_fuer_c.pdf
J Reference Card
The J Reference Card, a 2-page summary of J primitives, is available in pdf form
A German transcription on 6 pages is available here j_schnell_referenz_20070616.pdf
Brief Reference
This brief reference gives informal descriptions of most of the J primitives.
Chris Burke and Clifford Reiter pdf
Computers and Mathematical Notation
A 15 page discussion of Mathematical Notation and J
Kenneth E Iverson - Copyright Jsoftware Available in a J installation or here.
Easy J
A 44-page introduction to J for newcomers to the language. The authors provide this without copyright and it is available for free distribution and it can be edited or altered without acknowledgement.
Linda Alvord, Norman Thomson Available in pdf or Word DOC
Fractals, Visualization & J, 3rd ed.
An introduction to mathematical visualization including many fractals and using the J programming language. Designed for classroom use or individual learning. No prior experience with J is required. Experiments are hands on explorations that readers can duplicate. Topics include fractals, time series, iterated function systems, chaos and symmetry, cellular automata, complex dynamics, image processing, ray tracing and Open GL. Updated for J6.01 and including many new sections and full color throughout. View the full table of contents at http://ww2.lafayette.edu/~reiterc/j/fvj3/index.html
Published by lulu, copyright Clifford A. Reiter 2007
Three formats are available:
Perfect bound (recommend this to your library) ISBN 978-1-4303-1980-1 from amazon.com or lulu.com http://www.lulu.com/content/635966
Coil bound (for easy study -- no ISBN) only at lulu.com http://www.lulu.com/content/635938
As a PDF, (inexpensive) only from lulu.com (search for reiterc)
Old second edition (out of print): Clifford Reiter - ISBN ![[ISBN]](/wiki/modern/img/moin-inter.png){kind=small}
1-895721-18-0 - Copyright Clifford Reiter Published by Jsoftware and available at amazon.com
J - The Natural Language for Analytic Computing
From the book:
J is a computer language which is remarkable for the way in which it allows technical instructions for computing to be expressed with great conciseness using constructs and syntax which closely mirror those of natural language ... a fully integrated computing system with a development environment, library utilities and interfaces to a full range of mainstream computing applications such as graphics and databases ... a much closer bridge has been constructed between computer and human language than ever before.
Part 1-Basic J: In the beginning... verbs; ...and then nouns; Extensions to verbs and adverbs; Basic conjunctions and composition; Dictionary and foreign conjunction; Part 2-Advanced J: Control Words; Gerunds; Display and Files; The dot conjunction; The power conjunction; The rank conjunction; Part 3-Data Processing with J: Selection; Data structuring; Ranking and ordering; Some programming principles; Searching, finding and updating; Joining data; Partitioning; Opposites Part 4-Mathematics with J: Complex Numbers; Number bases and Polynomials; Series; Calculus and the D adverb; Numerical analysis; Randomness; Permutations and Combinations; Groups and Symmetries; Logic; Appendix A: Solutions to Exercises; Appendix B: Phrases and algorithms
Norman J Thomson - ISBN 0-86380-275-3 Available at amazon.com or from Research Studies Press
See book review.
Mathematical Computing in J: Volume 1, Introduction
This book introduces mathematical computing using J -- a powerful new programming language with practical applications in mathematics, actuarial analysis, scientific research, business data processing, and education. J unifies many areas of mathematics, has a simple consistent syntax with very few rules, yet includes a large number of functions and operators as tools for thinking and problem solving.
Howard A. Peelle is a Professor of Mathematics and Computer Science Education at the University of Massachusetts, Amherst, USA. Author of over 100 published articles and several books, he is the recipient of a National Award for Innovative Excellence in Teaching, Learning, and Technology and, recently, a Fulbright Scholar Award.
Howard A. Peelle - ISBN 0-86380-281-8 Contact: ![[MAILTO]](/wiki/modern/img/moin-email.png){kind=small}
books@rspltd.demon.co.uk Orders: Institute of Physics Publishing - higham@iop.org or ben.thomas@iop.org Publisher: Research Studies Press
See book review.
Math for the Layman
From the book:
In 1936, Lancelot Hogben published his still-popular Mathematics for the Million, stating his objective as follows: "The view which we shall explore is that mathematics is the language of size, shape and order and that it is an essential part of the equipment of an intelligent citizen to understand this language. If the rules of Mathematics are the rules of grammar, there is no stupidity involved when we fail to see that a mathematical truth is obvious. The rules of ordinary grammar are not obvious. They have to be learned. They are not eternal truths. They are conveniences without whose aid truths about the sorts of things in the world cannot be communicated from one person to another."
Our objective is similar, but we now have new tools: the development of computer programming has provided languages with grammars that are simpler and more tractable than that of conventional mathematical notation. Moreover, the general availability of the computer makes possible convenient and accurate experimentation with mathematical ideas.
Kenneth E Iverson - Copyright Jsoftware Available in zipped html with jpg images
Exploring Math
From the book:
This book introduces a new tool (J) for exploring math, and to foster its use by applying it to a variety of topics. It provides a ramble through a variety of topics rather than a systematic study of any one of them. The book assumes that you have J at hand on a computer, and will simply show examples of exploring math with it.
Kenneth E Iverson - Copyright Jsoftware Available in pdf
Arithmetic
From the book:
Arithmetic is the basic topic of mathematics. According to the American Heritage Dictionary [1], it concerns "The mathematics of integers under addition, subtraction, multiplication, division, involution, and evolution." The present text differs from other treatments of arithmetic in several respects:
The provision of simple but precise definitions of the counting numbers and other notions introduced.
The use of simple but precise notation that is executable on a computer, allowing experimentation and providing a simple and meaningful introduction to computer programming.
The introduction and significant use of fundamental mathematical notions (such as vectors, matrices, Heaviside operators, and duality) in simple contexts that make them easy to understand. This lays a firm foundation for a wealth of later use in mathematics.
Emphasis is placed on the use of guesses by speculation and criticism in the spirit of Lakatos, as discussed in the treatment of proofs in Chapter 5.
The thrust of the book might best be appreciated by comparing it with Felix Klein's Elementary Mathematics from an Advanced Standpoint [2]. However, I shun the corresponding title Arithmetic from an Advanced Standpoint because it would incorrectly suggest that the treatment is intended only for mature mathematicians; on the contrary, the use of simple, executable notation makes it accessible to any serious student possessing little more than a knowledge of the counting numbers.
Kenneth E Iverson - Copyright Jsoftware Available in pdf
Calculus
From the book:
Calculus is at once the most important and most difficult subject encountered early by students of mathematics; introductory courses often succeed only in turning students away from mathematics, and from the many subjects in which the calculus plays a major role.The present text introduces calculus in the informal manner adopted in my Arithmetic [1], a manner endorsed by Lakatos [2], and by the following words of Lanczos from his preface to [3]:
Furthermore, the author has the notion that mathematical formulas have their "secret life" behind their Golem-like appearance. To bring out the "secret life" of mathematical relations by an occasional narrative digression does not appear to him a profanation of the sacred rituals of formal analysis but merely an attempt to a more integrated way of understanding. The reader who has to struggle through a maze of "lemmas", "corollaries", and "theorems", can easily get lost in formalistic details, to the detriment of the essential elements of the results obtained. By keeping his mind on the principal points he gains in depth, although he may lose in details. The loss is not serious, however, since any reader equipped with the elementary tools of algebra and calculus can easily interpolate the missing details. It is a well-known experience that the only truly enjoyable and profitable way of studying mathematics is the method of "filling in the details" by one's own efforts.
The scope is broader than is usual in an introduction, embracing not only the differential and integral calculus, but also the difference calculus so useful in approximations, and the partial derivatives and the fractional calculus usually met only in advanced courses. Such breadth is achievable in small compass not only because of the adoption of informality, but also because of the executable notation employed. In particular, the array character of the notation makes possible an elementary treatment of partial derivatives in the manner used in tensor analysis.The text is paced for a reader familiar with polynomials, matrix products, linear functions, and other notions of elementary algebra; nevertheless, full definitions of such matters are also provided.
Kenneth E Iverson - Copyright Jsoftware Available in pdf.
Concrete Math Companion
From the book:
This book is written as a companion to 'Concrete Mathematics' (Graham, Knuth, and Patashnik (GKP)), following it closely in its choice of topics and order of treatment, and making explicit references to it. Because this book is written in executable notation, any expression can be entered directly on a computer for experimentation. This ability to experiment with the mathematical ideas complements the treatment of GKP.
Kenneth E Iverson - Copyright Jsoftware Available in pdf.
J Phrases
The J Phrases book contains a wealth of useful J idioms and expository material, but is no longer kept up to date. For the most part, it has been superseded by other material on the wiki, in particular the Phrases, Essays and Guides.
Here are the corresponding scripts included with the J504 release.