(2^67)-1 1729 235 Problem 2^64 3x + 1 Problem 4 Queens Problem 5-Smooth Number 8 Queens Problem 88 Hats 9 Queens Problem 99 Bottles of Beer A Fine Line Absolute and Relative Tolerance Ackermann's Function AllPartitions Anagram AnimalsGame APL Acknowledgements "APL" Origins APL RNG APL's Birthday APL\360 Developers Photo Aspects of J Attribute-Value Processing Base Spectrum Bernoulli Numbers Bernstein Polynomials Beta Function Bibliography Bifactorial Binary GCD Algorithm Binary Probability Binary Tree Birthday Problem Bisection Method Bitwise Functions on Characters Block Matrix Inverse Boolean Array Size Boxed Array Display Brevity Capped Fork Cayley's Theorem Check Sums ChessboardPuzzle Chi-Squared CDF Chinese Remainder Theorem Choleski Decomposition Christoffel Expressions Clockwise Angles Collatz Conjecture Combination Index Combination Sums Combinations Complete Tensor Complex Operations Compositions Continued Fractions Covert Representation Cross Product
Cross Sums Data Structures Dendrite DiceGame Distributed Apply Divisors Do While Double Factorial Duality Egyptian Fraction Eigenvalues Error Function Euclidean Algorithm Euler's Formula Euler's Identity Extended H Extended Precision Functions Extremal Arguments Factorings Fibonacci Index Fibonacci Sequence Fibonacci Sums Floyd From APL to J Gauss-Bonnet Theorem Gaussian Integers Generalized Monty Hall Goldbach Conjecture Grading versus Sorting Gray Code Hailstone Sequence Hamming Number Hilbert Matrix Histogram Hook Conjunction? Hook Rank Huffman Coding Identity Matrix IEEE Floating-Point Numbers In-Place Operations Incunabulum Indeterminate Index in Nub Inner Products Insanity Cube Insert Integer Root Inverse Permutation Inverted Table Isometric Surfaces J for C Programmers Front Cover Josephus Problem Kakuro カックロ Key Knight's Tour Kronecker Product Kruskal's Algorithm Landau's Function Large Exponent Real Arithmetic
Levenshtein Distance Linear Congruential Generator Linear Recurrences Linear Regression Longest Common Subsequence Lorenz Attractor LU Decomposition Mastermind Matrix Inverse Matrix Powers Memo Mertens Function Middle Names Miller-Rabin Primality Test Minimal Spanning Tree Minors moo MultipleOr Multiplicative Order Möbius Function N Queens Problem Name Resolution NaN Negative Rank Newton's Method Next Binary String Non-Adjacent Form (NAF) Non-Overlapping Substrings Nonincreasing Odometer Normal CDF Notation as a Tool of Thought Number in Words Nurikabe ぬりかべ Odometer Order Statistics Parentheses Matching Partitions Pascal's Ladder Pascal's Triangle Permutation Index Permutation Inverse Permutations Piano Tuning Polyminoes Polynomials Intersection Power Set Primality Tests Prime APVs Primes Less Than n Progressive Index-Of QR Decomposition Queens and Knights Quicksort Rank Table Recursive Descent Parser Reflexive Regex Lexer Regular Number
Repeated Squaring RNG Roman Numerals RSA Challenge Rössler Attractor Schwarzschild Scope Self-Downgrading Permutations Self-Upgrading Permutations Self-Valued Expression Semiprimes Set Game Set Partitions Short Circuit Boolean Simplex Method Sine Sorting versus Grading SpaceTime2D Square Root Squeamish Ossifrage Stirling Numbers Stirling's Approximation Substring Replacement Sudoku 數独 Sum of a Vector Symbol-Minded Symmetric Array Symmetries of the Square t-Distribution CDF Tacit Expressions Taxicab Number Teaching J Syntax Text Formatting The Art of Shaving The Ball Clock Problem The Essentials of J The Monty Hall Problem The TAO of J Timestamp Extension Tolerant Comparison Torsion Tensor Totient Function Tower of Hanoi Trains Transpose Tree Display Tree Sum Triangular Data Triangular Matrix Inverse Tuning a Piano Under Unforgettable Numbers Unique Factors Unit Fraction Sum Vier Neun Warnsdorff's Algorithm Word Formation on Lines Zeckendorf Representation
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