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[:Doc/A Source Book in APL#origins_of_APL:"APL" Origins
[:Essays/2^64:2^64
[:Essays/4 Queens Problem:4 Queens Problem
[:Essays/88 Hats:88 Hats
[:Essays/9 Queens Problem:9 Queens Problem
[:Essays/99 Bottles of Beer:99 Bottles of Beer
[:Essays/A Fine Line:A Fine Line
[:Essays/APL Acknowledgements:APL Acknowledgements
[:Essays/APL Chronology:APL Chronology
[:Essays/APL Developers Photo:APL\360 Developers Photo
[:Essays/Absolute and Relative Tolerance:Absolute and Relative Tolerance
[:Essays/Ackermann's Function:Ackermann's Function
[:Essays/Anagram:Anagram
[:Essays/AnimalsGame:AnimalsGame
[:Essays/Base Spectrum:Base Spectrum
[:Essays/Bernoulli Numbers:Bernoulli Numbers
[:Essays/Bernstein Polynomials:Bernstein Polynomials
[:Essays/Bibliography:Bibliography
[:Essays/Bifactorial:Bifactorial
[:Essays/Binary GCD Algorithm:Binary GCD Algorithm
[:Essays/Binary Probability:Binary Probability
[:Essays/Birthday Problem:Birthday Problem
[:Essays/Bisection Method:Bisection Method
[:Essays/Bitwise Functions on Characters:Bitwise Functions on Characters
[:Essays/Block Matrix Inverse:Block Matrix Inverse
[:Essays/Boolean Array Size:Boolean Array Size
[:Essays/Boxed Array Display:Boxed Array Display
[:Essays/Brevity:Brevity
[:Essays/Capped Fork:Capped Fork
[:Essays/Cayley's Theorem:Cayley's Theorem
[:Essays/Check Sums:Check Sums
[:Essays/ChessboardPuzzle:ChessboardPuzzle
[:Essays/Chi Squared CDF:Chi-Squared CDF
[:Essays/Chinese Remainder Theorem:Chinese Remainder Theorem
[:Essays/Choleski Decomposition:Choleski Decomposition
[:Essays/Christoffel:Christoffel Expressions
[:Essays/Collatz Conjecture:3x + 1 Problem
[:Essays/Collatz Conjecture:Collatz Conjecture
[:Essays/Combination Index:Combination Index
[:Essays/Combination Sums:Combination Sums
[:Essays/Combinations:Combinations
[:Essays/Complete Tensor#cross_product:Cross Product
[:Essays/Complete Tensor:Complete Tensor
[:Essays/Complex Operations:Complex Operations
[:Essays/Compositions:Compositions
[:Essays/Continued Fractions:Continued Fractions
[:Essays/Covert Representation:Covert Representation
[:Essays/DataStructures:Data Structures
[:Essays/Dendrite:Dendrite
[:Essays/DiceGame:DiceGame
[:Essays/Distributed Apply:Distributed Apply
[:Essays/Divisors:Divisors
[:Essays/Do While:Do While
[:Essays/Double Factorial:Double Factorial
[:Essays/Egyptian Fraction:Egyptian Fraction
[:Essays/Eigenvalues:Eigenvalues
[:Essays/Euclidean Algorithm:Euclidean Algorithm
[:Essays/Extended H:Binary Tree
[:Essays/Extended H:Extended H
[:Essays/Extended Precision Functions:Extended Precision Functions
[:Essays/Extremal Arguments:Extremal Arguments
[:Essays/Factorings:Factorings
[:Essays/Fibonacci Index:Fibonacci Index
[:Essays/Fibonacci Sequence:Fibonacci Sequence
[:Essays/Fibonacci Sums:Fibonacci Sums
[:Essays/Fibonacci Sums:Zeckendorf Representation
[:Essays/Gauss-Bonnet:Gauss-Bonnet Theorem
[:Essays/Gaussian Integers:Gaussian Integers
[:Essays/Generalized Monty Hall:Generalized Monty Hall
[:Essays/Goldbach Conjecture:Goldbach Conjecture
[:Essays/Gray Code:Gray Code
[:Essays/Hilbert Matrix:Hilbert Matrix
[:Essays/Histogram:Histogram
[:Essays/Hook Conjunction?:Hook Conjunction?
[:Essays/Hook Rank:Hook Rank
[:Essays/Huffman Coding:Huffman Coding
[:Essays/IEEE Floating-Point Numbers:IEEE Floating-Point Numbers
[:Essays/Identity Matrix:Identity Matrix
[:Essays/Incunabulum:Incunabulum
[:Essays/Indeterminate:Indeterminate
[:Essays/Indeterminate:NaN
[:Essays/Index in Nub:Index in Nub
[:Essays/Insert:Insert
[:Essays/IntRoot:Integer Root
[:Essays/Inverse Permutation:Inverse Permutation
[:Essays/Inverted Table:Inverted Table
[:Essays/Isometric Surfaces:Isometric Surfaces
[:Essays/JforC Front Cover:J for C Programmers Front Cover
[:Essays/Josephus Problem:Josephus Problem
[:Essays/Kakuro:Cross Sums
[:Essays/Kakuro:Kakuro カックロ
[:Essays/Kenneth E. Iverson:Kenneth E. Iverson
[:Essays/Key:Key
[:Essays/LU Decomposition:LU Decomposition
[:Essays/Landau's Function:Landau's Function
[:Essays/Large Exponent Real Arithmetic:Large Exponent Real Arithmetic
[:Essays/Linear Recurrences:Linear Recurrences
[:Essays/Linear Recurrences:Matrix Powers
[:Essays/Linear Regression:Linear Regression
[:Essays/Longest Common Subsequence:Longest Common Subsequence
[:Essays/Lorenz Attractor:Lorenz Attractor
[:Essays/Matrix Inverse:Matrix Inverse
[:Essays/Memo:Memo
[:Essays/Mertens Function:Mertens Function
[:Essays/Minimal Spanning Tree:Kruskal's Algorithm
[:Essays/Minimal Spanning Tree:Minimal Spanning Tree
[:Essays/Minors:Minors
[:Essays/Mobius Function:Möbius Function
[:Essays/MultipleOr:MultipleOr
[:Essays/Multiplicative Order:Multiplicative Order
[:Essays/N Queens Problem:8 Queens Problem
[:Essays/N Queens Problem:N Queens Problem
[:Essays/NAF:Non-Adjacent Form (NAF)
[:Essays/Name Resolution:Name Resolution
[:Essays/Negative Rank:Negative Rank
[:Essays/Newton's Method:Newton's Method
[:Essays/Next Binary String:Next Binary String
[:Essays/Non-Overlapping Substrings:Non-Overlapping Substrings
[:Essays/Nonincreasing Odometer:Nonincreasing Odometer
[:Essays/Normal CDF:Error Function
[:Essays/Normal CDF:Normal CDF
[:Essays/Notation as a Tool of Thought:Notation as a Tool of Thought
[:Essays/Number in Words:Number in Words
[:Essays/Odometer:Odometer
[:Essays/Order Statistics:Order Statistics
[:Essays/Partitions:Partitions
[:Essays/Pascal's Ladder:Pascal's Ladder
[:Essays/Pascal's Triangle:Pascal's Triangle
[:Essays/Permutation Index:Permutation Index
[:Essays/Permutations:Permutations
[:Essays/Polyminoes:Polyminoes
[:Essays/PolynomialsIntersection:Polynomials Intersection
[:Essays/Power Set:Power Set
[:Essays/Primality Tests:Primality Tests
[:Essays/Primes Less Than n:Primes Less Than n
[:Essays/Progressive Index-Of:Progressive Index-Of
[:Essays/QR Decomposition:QR Decomposition
[:Essays/Queens and Knights:Queens and Knights
[:Essays/Quicksort:Quicksort
[:Essays/RNG:RNG
[:Essays/RSA Challenge:RSA Challenge
[:Essays/Rank Table:Rank Table
[:Essays/Rank:Rank
[:Essays/Recursive Descent Parser:Recursive Descent Parser
[:Essays/Reflexive:Reflexive
[:Essays/Regex Lexer:Regex Lexer
[:Essays/Repeated Squaring:Repeated Squaring
[:Essays/Roman Numerals:Roman Numerals
[:Essays/Scope:Scope
[:Essays/Self-Downgrading Permutations:Self-Downgrading Permutations
[:Essays/Self-Upgrading Permutations:Self-Upgrading Permutations
[:Essays/Self:Self-Valued Expression
[:Essays/Semiprimes:Semiprimes
[:Essays/Set Game:Set Game
[:Essays/Set Partitions:Set Partitions
[:Essays/Short Circuit Boolean:Short Circuit Boolean
[:Essays/Sine:Sine
[:Essays/Sorting versus Grading:Grading versus Sorting
[:Essays/Sorting versus Grading:Sorting versus Grading
[:Essays/Square Root:Square Root
[:Essays/Stirling Numbers:Stirling Numbers
[:Essays/Stirling's Approximation:Stirling's Approximation
[:Essays/Sudoku:Sudoku 數独
[:Essays/Symbol-Minded:Symbol-Minded
[:Essays/Symmetric Array:Symmetric Array
[:Essays/Symmetries of the Square:Symmetries of the Square
[:Essays/Tacit Expressions:Tacit Expressions
[:Essays/Teaching J Syntax:Teaching J Syntax
[:Essays/Text Formatting:Text Formatting
[:Essays/The Art of Shaving:The Art of Shaving
[:Essays/The Ball Clock Problem:The Ball Clock Problem
[:Essays/The Essentials of J:The Essentials of J
[:Essays/The Monty Hall Problem:The Monty Hall Problem
[:Essays/The TAO of J:The TAO of J
[:Essays/Timestamp Extension:Timestamp Extension
[:Essays/Tolerant Comparison:Tolerant Comparison
[:Essays/Totient Function:Totient Function
[:Essays/Tower of Hanoi:Tower of Hanoi
[:Essays/Transpose:Transpose
[:Essays/Tree Display:Tree Display
[:Essays/Tree Sum:Tree Sum
[:Essays/Triangular Data:Triangular Data
[:Essays/Triangular Matrix Inverse:Triangular Matrix Inverse
[:Essays/Under:Duality
[:Essays/Under:Under
[:Essays/UniqueFactors:Unique Factors
[:Essays/Vier Neun:Vier Neun
[:Essays/Word Formation on Lines:Word Formation on Lines
[:Essays/moo:Mastermind
[:Essays/moo:moo
[:Puzzles/Sum of a Vector:Sum of a Vector
[:Puzzles/Unit Fraction Sum:Unit Fraction Sum
[:Stories/RichardBrown:Simplex Method