Articles

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General Articles

A Note on Programming Style Roger K.W. Hui & Kenneth E. Iverson
File:Aplj.pdf (pdf) Chris Burke
Array Processing with J (pdf) Milan Ondrus
Data Rummaging with J Joey Tuttle
File:Jacobs.pdf (pdf) Jan Jacobs (Computing & Control Engineering Journal December 2002)
Elegant Programming: #~ 1: = #@q: Chris Burke
Elegant Programming: &. dfh Chris Burke
Extended Integers in J Roger K.W. Hui
J for the APL Programmer Chris Burke and Roger K. W. Hui (updated version in wiki)
J Team wins Judge's Prize in the ICFP'98 Functional Programming Contest Roger K.W. Hui
J4 and OOP Chris Burke
Little JOBS and Big JOBS John D. Baker
Memory Mapped Files in J Chris Burke
Notation as a Tool of Thought Kenneth E. Iverson (1979 Turing Award Lecture)
Rank and Uniformity Roger K.W. Hui
Seven Great Blunders of the Computing World Neville Holmes
Sparse Arrays in J Roger K.W. Hui
Using J with OLE2 Building Configuration Software for SAP AG Duncan Pearson & Adrian Smith
Zero Divided by Zero Eugene McDonnell

At Play With J

The following articles by Eugene McDonnell are from his series “At Play With J” in Vector.

1.#0 How the Roll Function Works V8#3 1. MIMD Machines V10#2 1. Prime Factorisation V10#3 1. The 10,000,000,000th prime number V10#4 1. Control structures V11#1 1. Jacobi's Method V11#3 1. Cribbage 15s V11#4 1. Representations of a Permutation V12#1 1. The Bauer-Mengelberg Problem V12#2
1. Heron's Rule & Integer-Area Triangles V12#3
1. Year's Digits for 1996 V12#4
1. Riding a Unicycle V13#1
1. Volutes V13#2
1. Extended Integers V13#3
1. Stumping the Rocket Scientist V13#4
1. Oh, No, Not Eigenvalues Again! V14#1
1. A Newer Random Link Generator V14#4
1. To Summarise V15#1
1. Maximum Infix Sums V15#2
1. Crosswords and Life V15#3
1. New Model Computer V15#4
1. New Big Deal V16#1
1. We'll Cross That Bridge When We Come To It V16#3
1. An Open And Shut Case V16#4
1. Blists in OLEIS V17#1
1. Someone Just Moved! Who Was It? V17#2
1. Four Cubes Redux V17#3
1. Erdos Numbers & Pierce & Engel Expansions V17#4
1. Boggle V18#1
1. The Counterfeit Coin Problem V18#3
1. Second-order Josephus V18#4
1. J Be Nimble, J Be Quick V19#1
1. Beware Scholes! V19#3
1. Pick A Card, Any Card V19#4
1. Greed V20#1
1. The Magical Matrix V20#2
1. Giddyap V20#3
1. Jacob's Ladder V20#4
1. The Google Test V21#1
1. Metlov's Triumph V21#4
1. Belgian Numbers V22#1
1. Token Counting: APL versus J V22#3

Vector Articles

The following are some articles on-line at Vector.

Fast Fourier Transforms, Diffraction Patterns, and J Ned W. Allis, Jeffrey P. Dumont, Flynn J. Heiss, Clifford A. Reiter V16#3
Hyperbolic Symmetry is a Breeze Cliff Reiter V17#3
Working with Existing Ascii Files Using J Memory Mapping Donald B. Pittenger V17#3
Web Image Galleries Made Routine Clifford Reiter V18#1
The Image2 Addon Clifford A. Reiter and Zachary X. Reiter V18#3
Inner Product Fractals from Fuzzy Logics Angela Coxe V19#2
Boolean Hexagonal Automata Angela Coxe and Cliff Reiter V19#3
Taming Barrel and Tilt Distortion Cliff Reiter V20#1
Solving the “Now I Know” Problem in J Howard A. Peelle V20#2
Time(r) for the Game of Life Cliff Reiter V21#3
CRCOMPARE in J Adam Dunne V21#4
Thoughts on the URN Problem E.A. Clough V21#4
Integer Apollonian Circle Packings in J Cliff Reiter V22#4
APL - a Glimpse of Heaven Bernard Legrand V23#1
3-D Cellular Automata and the Game of Life Timothy K. Zirkel V23#3
Tacit J and I Neville Holmes V23#3
GPS and J Propel an Adirondack Hiking Guide Cliff Reiter V23#3
A J Simulator for a Meccano Differential Analyzer Keith Smillie V23#3
Functional calculation 1: numerical ingredients Neville Holme V23#4
Partitions of numbers: an efficient algorithm in J R.E. Boss V23#4
Functional calculation 2: The year 1997 Neville Holmes V24#1
Cauchy Curves William R. Jones & Cliff Reiter V24#1
Generating combinations in J efficiently R.E. Boss V24#2&3
Functional calculation 3: Structural Ingredients Neville Holmes V24#2&3
In Session: On average Roger Hui V24#2&3
Backgammon tools in J Howard A. Peelle V24#2&3
A commentary on the formulator Neville Holmes V24#4
Backgammon Tools in J: 2. Wastage Howard A. Peelle V24#4
Simulating the Enigma Keith Smillie V24#4
Functional Calculation 5: Operations Neville Holmes V25#1
Odd-order magic squares expressed in J John C. McInturff V25#1
What is it about infinity? Sylvia Camacho & Graham Parkhouse V25#1

The following article is available in the wiki:

Using J in Excel Richard Hill V21#1

J-ottings

This is a series of articles by Norman Thomson in Vector.

Jaesthetics V18#2
Decline and Rise : a Matter of Rank V20#2
A Rippling Good Yarn! V21#3
So Easy a Child of 10 … V21#4
RU14 txt msgs? pls 1!:1 on V22#2
Musical J-ers V22#3
Perming and Combing V22#4
Are you thinking what I’m thinking? V23#3
If you think J is complex try j V23#4

Journal of J

ISSN:2174-9280

An interdisciplinary journal on the J programming language and its applications in science.

Vol 0.0
Vol 0.1
Vol 1.1