REXX
REXX (REstructured eXtended eXecutor) is an interpreted programming language which was developed at IBM. It is a structured high-level programming language which was designed to be both easy to learn and easy to read. Both proprietary and open source interpreters for REXX are available on a wide range of computing platforms, and compilers are available for IBM mainframes.
'''REXX''' is also spelled: ::* Rexx ::* REXX
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'''ARexx''' is a classic REXX implementation (with extensions) for the AmigaOS, given in bundle since AmigaOS 2. (Regina REXX has specific support for the extended functions that were introduced in ARexx.) ARexx was written in 1987 by William S. Hawes.
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'''Brexx''' a classic REXX written by Vassilis N. Vlachoudis, it is free and it's open source and available under the GNU General Public License.
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'''CRX REXX''' (Compact REXX) is a classic REXX first written by Dr. Brian Marks.
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'''CTC REXX''' is a classic REXX that is bundled with PC/SPF and written by Command Technology Corporation, a license is required to use this product. This version of REXX can only be used under PC/SPF and it's panels. PC/SPF resembles the IBM program product SPF (which has other names and versions).
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'''KEXX''' is a subset of REXX that is bundled with KEDIT and written by Mansfield Software Group, Inc., a license is required to use this product. KEXX only executes under the KEDIT licensed product. KEDIT is an XEDIT clone (an editor from IBM for VM/CMS program products).
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'''MVS/TSO REXX''' is IBM's implementation of classic REXX, a license is required to use the product as well as the operating system it runs under; '''MVS''' and '''TSO''' are used here as generic references.
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'''MVS/TSO REXX compiler''' is an IBM implementation of classic REXX, a license is required to use this product as well as the operating system it runs under.
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'''NetRexx''' is IBM's variant of the REXX programming language to run on the Java virtual machine. It supports a classic REXX syntax, with no reserved keywords, along with considerable additions to support Object-oriented programming in a manner compatible with Java's object model, yet can be used as both a compiled and an interpreted language, with an option of using only data types native to the JVM or the NetRexx run-time package. The syntax and object model of NetRexx differ from Object REXX.
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'''Object REXX''' is/was an object-oriented scripting language initially produced by IBM for OS/2. It is a follow-on to and a significant extension of the "Classic Rexx" language originally created for the CMS component of VM/SP and later ported to MVS, OS/2 and PC DOS. OS/2 version of IBM Object REXX is deeply integrated with SOM. On October 12, 2004, IBM released Object REXX as open source software, giving rise to Open Object Rexx (ooREXX).
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'''ooRexx''' (Open Object Rexx) is an implementation of Object REXX, which is REXX with OO features (some REXX programs are compatible).
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'''OS/2 REXX''' is a classic REXX that is an IBM implementation of classic REXX, a license is required to use this product as well as the operating system it runs under.
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'''OS/400 REXX''' is an IBM implementation of classic REXX, a license is required to use this product as well as the operating system it runs under.
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'''PC/REXX''' is the first classic REXX implemented outside of IBM mainframes, intended for IBM DOS and MS DOS. Written by Mansfield Software Group, Inc., REXX was bundled with KEDIT, a license is required to use this product.
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'''Personal REXX''' is a classic REXX that is intended for IBM DOS and MS DOS, written by a Quercus Systems, a license is required to use this product.
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'''Portable REXX''' (see the '''R4 REXX''' entry, below).
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'''Regina REXX''' is an implementation first created by Anders Christensen (in 1992) and now maintained by others, notably Mark Hessling. Regina REXX runs on more different platforms than any other REXX, too many to name here. It can be downloaded freely.
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'''Reginald REXX''' is a REXX developed by Jeff Glatt. It can be downloaded freely.
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'''REXX/imc''' a classic REXX developed by Ian M. Collier (imc) for Linux/Unix.
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'''ROO oo-REXX''' an object-oriented REXX developed by Keith Watts of Kilowatt Software, Inc. It can be downloaded freely. '''ROO''' is also known as '''ROO!'''.
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'''R4 REXX''' a classic REXX developed by Keith Watts of Kilowatt Software, Inc. It was also known as '''Portable REXX'''. It can be downloaded freely.
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'''T/REXX, a REXX compiler for CMS''' is an implementation of classic REXX written by Lundin and Woodruff (according to Wikipedia).
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'''VM/CMS REXX''' is an IBM implementation of classic REXX that was first implemented in the early 1980s. A license is required to use this product as well as the operating system that it runs under. This was the original implementation of REXX written (circa 1979) by Mike Cowlishaw of IBM.
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'''VM/CMS REXX compiler''' is an IBM implementation of classic REXX, a license is required to use this product as well as the operating system it runs under.
[Most of the entries were entered mostly from memory and apologies are offered for not knowing more about what wording should be used; the IBM operating systems or Program Products that run REXX are numerous and varied. Their complete (official) names would fill a pageful. Some of the REXXes are no longer sold nor available for downloading or purchase, others are no longer maintained. Naming of names is being avoided (especially those licensed products for sale), and it is hoped that this is seen that no products nor vendors are being endorsed, appraised, or critiqued.] -- Gerard Schildberger 09:28, 1 July 2012 (UTC)
External Links
- English Wikipedia REXX
- Brexx interpreter
- Open Object Rexx - www.oorexx.org
- The NetRexx Programming Language - www.netrexx.org
- The Rexx Language Association - www.rexxla.org
- Regina Rexx Interpreter
- Mansfield Software Group, Inc. (KEDIT)
- Personal REXX, Quercus Systems
- CTC Command Technology
- CRX Open Source (right column side)
- R4, Kilowatt Software
- ROO, Kilowatt Software
- z/VM V6R1 REXX/VM Reference
- z/VM V6R1 REXX/VM User's Guide
- {many references to REXX manuals}
Todo
Tasks
- 100 doors
- 15 Puzzle Game
- 16 Puzzle Game
- 2048
- 21 Game
- 24 game
- 24 game/Solve
- 4-rings or 4-squares puzzle
- 9 billion names of God the integer
- A* search algorithm
- A+B
- ABC Problem
- AKS test for primes
- ASCII art diagram converter
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abstract type
- Abundant odd numbers
- Abundant, deficient and perfect number classifications
- Accumulator factory
- Ackermann function
- Active Directory/Search for a user
- Address of a variable
- Align columns
- Aliquot sequence classifications
- Almost prime
- Amb
- Anagrams
- Anagrams/Deranged anagrams
- Angle difference between two bearings
- Angles (geometric), normalization and conversion
- Animation
- Anonymous recursion
- Anti-primes
- Append a record to the end of a text file
- Apply a callback to an array
- Apply a digital filter (direct form II transposed)
- Approximate Equality
- Arbitrary-precision integers (included)
- Archimedean spiral
- Arena storage pool
- Arithmetic evaluation
- Arithmetic-geometric mean
- Arithmetic-geometric mean/Calculate Pi
- Arithmetic/Complex
- Arithmetic/Integer
- Arithmetic/Rational
- Array concatenation
- Array length
- Arrays
- Assertions
- Assertions in design by contract
- Associative array/Creation
- Associative array/Iteration
- Attractive numbers
- Average loop length
- Averages/Arithmetic mean
- Averages/Mean angle
- Averages/Mean time of day
- Averages/Median
- Averages/Mode
- Averages/Pythagorean means
- Averages/Root mean square
- Averages/Simple moving average
- Babbage problem
- Bacon cipher
- Balanced brackets
- Balanced ternary
- Barnsley fern
- Base58Check encoding
- Base64 encode data
- Bell numbers
- Benford's law
- Bernoulli numbers
- Best shuffle
- Binary digits
- Binary search
- Binary strings
- Birthday problem
- Bitmap
- Bitmap/Flood fill
- Bitmap/Midpoint circle algorithm
- Bitmap/Read a PPM file
- Bitmap/Write a PPM file
- Bitwise IO
- Bitwise operations
- Boolean values
- Box the compass
- Brace expansion
- Brazilian numbers
- Bresenham's Line Algorithm
- Brownian tree
- Bulls and cows
- Bulls and cows/Player
- Burrows–Wheeler transform
- CRC-32
- CSV data manipulation
- CSV to HTML translation
- CUSIP
- Caesar cipher
- Calculating the value of e
- Calendar
- Call a foreign-language function
- Call a function
- Call a function in a shared library
- Card shuffles
- Carmichael 3 strong pseudoprimes
- Cartesian product of two or more lists
- Case-sensitivity of identifiers
- Casting out nines
- Catalan numbers
- Catalan numbers/Pascal's triangle
- Catamorphism
- Chaos game
- Character codes
- Chebyshev coefficients
- Check Machin-like formulas
- Check input device is a terminal
- Check output device is a terminal
- Check that file exists
- Chemical Calculator
- Chinese remainder theorem
- Cholesky decomposition
- Chowla numbers
- Circles of given radius through two points
- Closest-pair problem
- Closures/Value capture
- Code segment unload
- Collections
- Color of a screen pixel
- Colour bars/Display
- Combinations
- Combinations and permutations
- Combinations with repetitions
- Comma quibbling
- Command-line arguments
- Commatizing numbers
- Comments
- Compare a list of strings
- Compile-time calculation
- Compound data type
- Conditional structures
- Conjugate transpose
- Constrained random points on a circle
- Continued fraction
- Continued fraction/Arithmetic/Construct from rational number
- Convert decimal number to rational
- Convert seconds to compound duration
- Convex hull
- Copy a string
- Count in factors
- Count in octal
- Count occurrences of a substring
- Count the coins
- Cramer's rule
- Create a file
- Create a file on magnetic tape
- Create a two-dimensional array at runtime
- Create an HTML table
- Cuban primes
- Cumulative standard deviation
- Currency
- Currying
- Cut a rectangle
- DNS query
- Damm algorithm
- Data Encryption Standard
- Date format
- Date manipulation
- Day of the week
- Days between dates
- De Bruijn sequences
- Decimal floating point number to binary
- Decision tables
- Deconvolution/1D
- Delete a file
- Department Numbers
- Detect division by zero
- Determinant and permanent
- Determine if a string is numeric
- Determine if only one instance is running
- Determine if two triangles overlap
- Dice game probabilities
- Digital root
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dinesman's multiple-dwelling problem
- Dining philosophers
- Discordian date
- Display a linear combination
- Diversity prediction theorem
- Documentation
- Dot product
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Traversal
- Dragon curve
- Draw a clock
- Draw a cuboid
- Draw a sphere
- Dutch national flag problem
- Dynamic variable names
- EKG sequence convergence
- Eban numbers
- Eertree
- Egyptian division
- Egyptian fractions
- Element-wise operations
- Elliptic curve arithmetic
- Emirp primes
- Empty directory
- Empty program
- Empty string
- Enforced immutability
- Entropy
- Entropy/Narcissist
- Enumerations
- Environment variables
- Equilibrium index
- Ethiopian multiplication
- Euler method
- Euler's identity
- Euler's sum of powers conjecture
- Evaluate binomial coefficients
- Even or odd
- Events
- Evolutionary algorithm
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute Brainfuck
- Execute HQ9+
- Execute a Markov algorithm
- Execute a system command
- Exponentiation operator
- Exponentiation order
- Extend your language
- Extensible prime generator
- External sort
- Extract file extension
- Extreme floating point values
- FASTA format
- Factorial
- Factorions
- Factors of a Mersenne number
- Factors of an integer
- Farey sequence
- Fast Fourier transform
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fermat numbers
- Fibonacci n-step number sequences
- Fibonacci sequence
- Fibonacci word
- Fibonacci word/fractal
- Filter
- Find common directory path
- Find duplicate files
- Find first and last set bit of a long integer
- Find limit of recursion
- Find palindromic numbers in both binary and ternary bases
- Find the intersection of a line with a plane
- Find the last Sunday of each month
- Find the missing permutation
- Finite state machine
- First class environments
- First perfect square in base N with N unique digits
- First-class functions
- First-class functions/Use numbers analogously
- Five weekends
- Fivenum
- Fixed length records
- FizzBuzz
- Flatten a list
- Flipping bits game
- Flow-control structures
- Floyd's triangle
- Floyd-Warshall algorithm
- Forest fire
- Fork
- Formatted numeric output
- Forward difference
- Four bit adder
- Four is magic
- Four is the number of letters in the ...
- Fractran
- Function composition
- Function definition
- Function frequency
- Function prototype
- Fusc sequence
- Galton box animation
- Gamma function
- Gauss-Jordan matrix inversion
- Gaussian elimination
- General FizzBuzz
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generate random chess position
- Generator/Exponential
- Generic swap
- Get system command output
- Globally replace text in several files
- Gray code
- Grayscale image
- Greatest common divisor
- Greatest element of a list
- Greatest subsequential sum
- Greed
- Guess the number
- Guess the number/With feedback
- Guess the number/With feedback (player)
- HTTP
- Hamming numbers
- Handle a signal
- Happy numbers
- Harshad or Niven series
- Hash from two arrays
- Hash join
- Haversine formula
- Hello world!
- Hello world/Graphical
- Hello world/Line printer
- Hello world/Newbie
- Hello world/Newline omission
- Hello world/Standard error
- Hello world/Text
- Hello world/Web server
- Here document
- Heronian triangles
- Hickerson series of almost integers
- Higher-order functions
- History variables
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Hofstadter-Conway $10,000 sequence
- Holidays related to Easter
- Horizontal sundial calculations
- Horner's rule for polynomial evaluation
- Host introspection
- Hostname
- Huffman coding
- Humble numbers
- I before E except after C
- IBAN
- Identity matrix
- Idiomatically determine all the characters that can be used for symbols
- Idiomatically determine all the lowercase and uppercase letters
- Image noise
- Implicit type conversion
- Include a file
- Increment a numerical string
- Index finite lists of positive integers
- Infinity
- Input loop
- Input/Output for Lines of Text
- Input/Output for Pairs of Numbers
- Integer comparison
- Integer overflow
- Integer roots
- Integer sequence
- Interactive Help
- Interactive programming
- Intersecting Number Wheels
- Introspection
- Inverted index
- Inverted syntax
- Iterated digits squaring
- Jaro distance
- Jensen's Device
- Jewels and Stones
- JortSort
- Josephus problem
- Julia set
- Jump anywhere
- Just in time processing on a character stream
- Kahan summation
- Kaprekar numbers
- Kernighans large earthquake problem
- Keyboard input/Flush the keyboard buffer
- Keyboard input/Keypress check
- Keyboard input/Obtain a Y or N response
- Keyboard macros
- Knapsack problem/0-1
- Knapsack problem/Continuous
- Knapsack problem/Unbounded
- Knight's tour
- Knuth shuffle
- Knuth's algorithm S
- Kronecker product
- Kronecker product based fractals
- LU decomposition
- LZW compression
- Lah numbers
- Langton's ant
- Largest int from concatenated ints
- Largest number divisible by its digits
- Last Friday of each month
- Last letter-first letter
- Launch rocket with countdown and acceleration in stdout
- Law of cosines - triples
- Leap year
- Least common multiple
- Left factorials
- Leonardo numbers
- Letter frequency
- Levenshtein distance
- Linear congruential generator
- Linux CPU utilization
- List comprehensions
- List rooted trees
- Literals/Floating point
- Literals/Integer
- Literals/String
- Logical operations
- Long multiplication
- Long primes
- Longest Common Substring
- Longest common prefix
- Longest common subsequence
- Longest increasing subsequence
- Longest string challenge
- Look-and-say sequence
- Loop over multiple arrays simultaneously
- Loops/Break
- Loops/Continue
- Loops/Do-while
- Loops/Downward for
- Loops/For
- Loops/For with a specified step
- Loops/Foreach
- Loops/Increment loop index within loop body
- Loops/Infinite
- Loops/N plus one half
- Loops/Nested
- Loops/While
- Loops/Wrong ranges
- Loops/with multiple ranges
- Lucas-Lehmer test
- Lucky and even lucky numbers
- Ludic numbers
- Luhn test of credit card numbers
- MD5
- MD5/Implementation
- Mad Libs
- Magic 8-Ball
- Magic squares of doubly even order
- Magic squares of odd order
- Main step of GOST 28147-89
- Make a backup file
- Make directory path
- Man or boy test
- Mandelbrot set
- Map range
- Markov chain text generator
- Mastermind
- Matrix Digital Rain
- Matrix multiplication
- Matrix transposition
- Maximum triangle path sum
- Mayan numerals
- Maze generation
- McNuggets Problem
- Memory allocation
- Memory layout of a data structure
- Menu
- Mersenne primes
- Metaprogramming
- Mian-Chowla sequence
- Middle three digits
- Miller–Rabin primality test
- Mind boggling card trick
- Modular exponentiation
- Modular inverse
- Modulinos
- Monte Carlo methods
- Monty Hall problem
- Morpion solitaire
- Morse code
- Move-to-front algorithm
- Multi-dimensional array
- Multifactorial
- Multiplication tables
- Multiplicative order
- Multisplit
- Munchausen numbers
- Munching squares
- Musical scale
- Mutual recursion
- N'th
- N-queens problem
- N-smooth numbers
- NYSIIS
- Named parameters
- Naming conventions
- Narcissist
- Narcissistic decimal number
- Native shebang
- Nautical bell
- Negative base numbers
- Nested function
- Nested templated data
- Nim Game
- Non-continuous subsequences
- Non-decimal radices/Convert
- Non-decimal radices/Input
- Non-decimal radices/Output
- Nonoblock
- Nonogram solver
- Nth root
- Null object
- Number names
- Number reversal game
- Numeric error propagation
- Numerical and alphabetical suffixes
- Numerical integration
- Numerical integration/Adaptive Simpson's method
- Numerical integration/Gauss-Legendre Quadrature
- Odd word problem
- Old Russian measure of length
- Old lady swallowed a fly
- One of n lines in a file
- One-dimensional cellular automata
- Operator precedence
- Optional parameters
- Orbital elements
- Order disjoint list items
- Order two numerical lists
- Ordered Partitions
- Ordered words
- Palindrome detection
- Pangram checker
- Paraffins
- Parametric polymorphism
- Parse an IP Address
- Parse command-line arguments
- Parsing/RPN calculator algorithm
- Parsing/RPN to infix conversion
- Parsing/Shunting-yard algorithm
- Partial function application
- Particle Swarm Optimization
- Partition an integer X into N primes
- Pascal matrix generation
- Pascal's triangle
- Pascal's triangle/Puzzle
- Password generator
- Pathological floating point problems
- Pattern matching
- Pell's equation
- Penney's game
- Pentagram
- Perceptron
- Perfect numbers
- Perfect shuffle
- Perfect totient numbers
- Perlin noise
- Permutation test
- Permutations
- Permutations by swapping
- Permutations with repetitions
- Permutations with some identical elements
- Permutations/Derangements
- Permutations/Rank of a permutation
- Pernicious numbers
- Phrase reversals
- Pi
- Pick random element
- Pierpont primes
- Pig the dice game
- Pig the dice game/Player
- Playfair cipher
- Playing cards
- Plot coordinate pairs
- Pointers and references
- Poker hand analyser
- Polymorphic copy
- Polynomial long division
- Polynomial regression
- Population count
- Power set
- Pragmatic directives
- Price fraction
- Primality by trial division
- Prime conspiracy
- Prime decomposition
- Primorial numbers
- Print debugging statement
- Priority queue
- Probabilistic choice
- Problem of Apollonius
- Program name
- Program termination
- Proper divisors
- Pythagorean quadruples
- Pythagorean triples
- Quaternion type
- Queue/Definition
- Queue/Usage
- Quickselect algorithm
- Quine
- RPG Attributes Generator
- Ramanujan's constant
- Ramer-Douglas-Peucker line simplification
- Ramsey's theorem
- Random Latin Squares
- Random number generator (device)
- Random number generator (included)
- Random numbers
- Range consolidation
- Range expansion
- Range extraction
- Ranking methods
- Rare numbers
- Rate counter
- Ray-casting algorithm
- Read a configuration file
- Read a file character by character/UTF8
- Read a file line by line
- Read a specific line from a file
- Read entire file
- Readline interface
- Real constants and functions
- Recaman's sequence
- Reduced row echelon form
- Reflection/Get source
- Reflection/List properties
- Regular expressions
- Remove duplicate elements
- Remove lines from a file
- Rename a file
- Rep-string
- Repeat
- Repeat a string
- Resistor mesh
- Return multiple values
- Reverse a string
- Reverse the gender of a string
- Reverse words in a string
- Rock-paper-scissors
- Roman numerals/Decode
- Roman numerals/Encode
- Roots of a function
- Roots of a quadratic function
- Roots of unity
- Rosetta Code/Fix code tags
- Rot-13
- Run-length encoding
- Runge-Kutta method
- Runtime evaluation
- Runtime evaluation/In an environment
- S-Expressions
- SEDOLs
- Safe mode
- Safe primes and unsafe primes
- Sailors, coconuts and a monkey problem
- Same Fringe
- Sattolo cycle
- Scope modifiers
- Scope/Function names and labels
- Search a list
- Search a list of records
- Selective File Copy
- Self-describing numbers
- Self-referential sequence
- Semiprime
- Semordnilap
- Send email
- Separate the house number from the street name
- Sequence of primes by trial division
- Sequence: nth number with exactly n divisors
- Sequence: smallest number greater than previous term with exactly n divisors
- Sequence: smallest number with exactly n divisors
- Set
- Set consolidation
- Set of real numbers
- Set puzzle
- Seven-sided dice from five-sided dice
- Sexy primes
- Shell one-liner
- Shoelace formula for polygonal area
- Short-circuit evaluation
- Shortest common supersequence
- Show Ascii table
- Show the epoch
- Sierpinski carpet
- Sierpinski triangle
- Sieve of Eratosthenes
- Simple database
- Simulate input/Keyboard
- Sine wave
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Traversal
- Sleep
- Smarandache prime-digital sequence
- Snake And Ladder
- Solve a Hidato puzzle
- Solve a Holy Knight's tour
- Solve a Hopido puzzle
- Solve a Numbrix puzzle
- Solve the no connection puzzle
- Sort a list of object identifiers
- Sort an array of composite structures
- Sort an integer array
- Sort disjoint sublist
- Sort numbers lexicographically
- Sort stability
- Sort three variables
- Sort using a custom comparator
- Sorting Algorithms/Circle Sort
- Sorting algorithms/Bead sort
- Sorting algorithms/Bogosort
- Sorting algorithms/Bubble sort
- Sorting algorithms/Cocktail sort
- Sorting algorithms/Comb sort
- Sorting algorithms/Counting sort
- Sorting algorithms/Cycle sort
- Sorting algorithms/Gnome sort
- Sorting algorithms/Heapsort
- Sorting algorithms/Insertion sort
- Sorting algorithms/Merge sort
- Sorting algorithms/Pancake sort
- Sorting algorithms/Patience sort
- Sorting algorithms/Permutation sort
- Sorting algorithms/Quicksort
- Sorting algorithms/Radix sort
- Sorting algorithms/Selection sort
- Sorting algorithms/Shell sort
- Sorting algorithms/Sleep sort
- Sorting algorithms/Stooge sort
- Sorting algorithms/Strand sort
- Soundex
- Sparkline in unicode
- Special characters
- Special variables
- Speech synthesis
- Spelling of ordinal numbers
- Spinning rod animation/Text
- Spiral matrix
- Split a character string based on change of character
- Spoof game
- Square but not cube
- Square-free integers
- Stable marriage problem
- Stack
- Stack traces
- Stair-climbing puzzle
- Start from a main routine
- State name puzzle
- Statistics/Basic
- Statistics/Normal distribution
- Stem-and-leaf plot
- Stern-Brocot sequence
- Stirling numbers of the first kind
- Stirling numbers of the second kind
- Straddling checkerboard
- String append
- String case
- String comparison
- String concatenation
- String interpolation (included)
- String length
- String matching
- String prepend
- Strip a set of characters from a string
- Strip block comments
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Strong and weak primes
- Subleq
- Subset sum problem
- Substitution Cipher
- Substring
- Substring/Top and tail
- Subtractive generator
- Successive prime differences
- Sudoku
- Suffixation of decimal numbers
- Sum and Product Puzzle
- Sum and product of an array
- Sum data type
- Sum digits of an integer
- Sum multiples of 3 and 5
- Sum of a series
- Sum of squares
- Sum to 100
- Super-d numbers
- Superellipse
- Superpermutation minimisation
- Symmetric difference
- System time
- Table creation
- Table creation/Postal addresses
- Take notes on the command line
- Taxicab numbers
- Teacup rim text
- Temperature conversion
- Terminal control/Clear the screen
- Terminal control/Coloured text
- Terminal control/Cursor movement
- Terminal control/Cursor positioning
- Terminal control/Dimensions
- Terminal control/Display an extended character
- Terminal control/Hiding the cursor
- Terminal control/Inverse video
- Terminal control/Positional read
- Terminal control/Preserve screen
- Terminal control/Ringing the terminal bell
- Ternary logic
- Test a function
- Test integerness
- Text between
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- Textonyms
- The ISAAC Cipher
- The Name Game
- The Twelve Days of Christmas
- Thue-Morse
- Tic-tac-toe
- Time a function
- Tokenize a string
- Tokenize a string with escaping
- Tonelli-Shanks algorithm
- Top rank per group
- Topic variable
- Topological sort
- Topological sort/Extracted top item
- Topswops
- Total circles area
- Totient function
- Trabb Pardo–Knuth algorithm
- Tree traversal
- Trigonometric functions
- Truncatable primes
- Truncate a file
- Truth table
- Twelve statements
- Two Sum
- Type detection
- URL decoding
- URL encoding
- Ulam spiral (for primes)
- Unbias a random generator
- Undefined values
- Unicode variable names
- Unit testing
- Universal Turing machine
- Unix/ls
- Untrusted environment
- Update a configuration file
- Using a Speech engine to highlight words
- VList
- Validate International Securities Identification Number
- Vampire number
- Van Eck sequence
- Van der Corput sequence
- Variable size/Get
- Variable size/Set
- Variable-length quantity
- Variables
- Variadic function
- Vector
- Vector products
- Verify distribution uniformity/Chi-squared test
- Verify distribution uniformity/Naive
- Video display modes
- Vigenère cipher
- Visualize a tree
- Walk a directory/Non-recursively
- Walk a directory/Recursively
- Water collected between towers
- Weird numbers
- Wireworld
- Word break problem
- Word frequency
- Word wrap
- World Cup group stage
- Write entire file
- Write float arrays to a text file
- Write to Windows event log
- XML/Input
- XML/Output
- XML/XPath
- Xiaolin Wu's line algorithm
- Y combinator
- Yin and yang
- Zebra puzzle
- Zeckendorf number representation
- Zero to the zero power
- Zhang-Suen thinning algorithm
- Zig-zag matrix
- Zumkeller numbers