Tasks not implemented in Seed7
Awareness
If Seed7 is a language you like, or are interested in, please inform your fellow members of the Seed7 community; this page can't be emptied without your and their participation.
If Seed7 is a language you like, or are interested in, please inform your fellow members of the Seed7 community; this page can't be emptied without your and their participation.
Tasks not implemented in Seed7
1
2
4
9
A
- ABC correlation
- ADFGVX cipher
- ASCII art diagram converter
- AVL tree
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abelian sandpile model
- Abelian sandpile model/Identity
- Abundant odd numbers
- Accumulator factory
- Achilles numbers
- Active Directory/Connect
- Active Directory/Search for a user
- Active object
- Add a variable to a class instance at runtime
- Address of a variable
- Algebraic data types
- Aliquot sequence classifications
- Almkvist-Giullera formula for pi
- Amicable pairs
- Anagram generator
- Anagrams/Deranged anagrams
- Anaprimes
- Angles (geometric), normalization and conversion
- Animate a pendulum
- Animated Spinners
- Animation
- 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
- Apéry's constant
- Arena storage pool
- Arithmetic derivative
- Arithmetic evaluation
- Arithmetic numbers
- Arithmetic-geometric mean/Calculate Pi
- Ascending primes
- Assertions
- Associative array/Merging
- Atomic updates
- Attractive numbers
- Autogram checker
- Averages/Mean time of day
- Averages/Simple moving average
B
- Babylonian spiral
- Balanced ternary
- Barnsley fern
- Bell numbers
- Benford's law
- Bernstein basis polynomials
- Bifid cipher
- Bin given limits
- Binomial transform
- Bioinformatics/Global alignment
- Bioinformatics/Sequence mutation
- Bioinformatics/base count
- Biorhythms
- Bitmap/Bresenham's line algorithm
- Bitmap/Bézier curves/Cubic
- Bitmap/Bézier curves/Quadratic
- Bitmap/Flood fill
- Bitmap/Histogram
- Bitmap/Midpoint circle algorithm
- Bitmap/PPM conversion through a pipe
- Bitmap/Read an image through a pipe
- Blum integer
- Boustrophedon transform
- Boyer-Moore string search
- Brazilian numbers
- Break OO privacy
- Brilliant numbers
- Bron–Kerbosch algorithm
- Bulls and cows/Player
- Bézier curves/Intersections
C
- CUSIP
- Calkin-Wilf sequence
- Call a foreign-language function
- Call a function in a shared library
- Call an object method
- Camel case and snake case
- Canny edge detector
- Canonicalize CIDR
- Cantor set
- Cartesian product of two or more lists
- Catamorphism
- Catmull–Clark subdivision surface
- Centre and radius of a circle passing through 3 points in a plane
- Chaocipher
- Chaos game
- Chat server
- Check if a polygon overlaps with a rectangle
- Check if two polygons overlap
- Check input device is a terminal
- Check output device is a terminal
- Checkpoint synchronization
- Chernick's Carmichael numbers
- Cheryl's birthday
- Chowla numbers
- Church numerals
- Circular primes
- Cistercian numerals
- Classes
- Closures/Value capture
- Color of a screen pixel
- Color quantization
- Color wheel
- Colorful numbers
- Colour bars/Display
- Colour pinstripe/Display
- Colour pinstripe/Printer
- Combinations and permutations
- Combinations with repetitions
- Commatizing numbers
- Compare length of two strings
- Compare sorting algorithms' performance
- Compiler/AST interpreter
- Compiler/Simple file inclusion pre processor
- Compiler/code generator
- Compiler/lexical analyzer
- Compiler/syntax analyzer
- Compiler/virtual machine interpreter
- Composite numbers k with no single digit factors whose factors are all substrings of k
- Concurrent computing
- Conjugate transpose
- Consecutive primes with ascending or descending differences
- Constrained genericity
- Constrained random points on a circle
- Continued fraction
- Continued fraction/Arithmetic/Construct from rational number
- Continued fraction/Arithmetic/G(matrix ng, continued fraction n)
- Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2)
- Convert seconds to compound duration
- Convex hull
- Conway's Game of Life
- Cramer's rule
- Create an object at a given address
- Cuban primes
- Cullen and Woodall numbers
- Cumulative standard deviation
- Currency
- Currying
- Curzon numbers
- Cut a rectangle
- Cycles of a permutation
- Cyclops numbers
- Cyclotomic polynomial
D
- Damm algorithm
- Dating agency
- De Bruijn sequences
- De Polignac numbers
- Death Star
- Deceptive numbers
- Deconvolution/1D
- Deconvolution/2D+
- Decorate-sort-undecorate idiom
- Deepcopy
- Define a primitive data type
- Delegates
- Deming's funnel
- Department numbers
- Descending primes
- Determinant and permanent
- Determine if a string has all the same characters
- Determine if a string has all unique characters
- Determine if a string is collapsible
- Determine if a string is squeezable
- Determine if only one instance is running
- Determine if two triangles overlap
- Determine sentence type
- Dice game probabilities
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dinesman's multiple-dwelling problem
- Dining philosophers
- Disarium numbers
- Display a linear combination
- Display an outline as a nested table
- Distance and Bearing
- Distributed programming
- Distribution of 0 digits in factorial series
- Diversity prediction theorem
- Documentation
- Dominoes
- Doomsday rule
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Traversal
- Draw a cuboid
- Draw a pixel
- Draw a rotating cube
- Draw a sphere
- Duffinian numbers
- Dutch national flag problem
- Dynamic variable names
E
- EKG sequence convergence
- Earliest difference between prime gaps
- Eban numbers
- Eertree
- Egyptian division
- Element-wise operations
- Elementary cellular automaton
- Elementary cellular automaton/Infinite length
- Elementary cellular automaton/Random number generator
- Elliptic Curve Digital Signature Algorithm
- Elliptic curve arithmetic
- Emirp primes
- Engel expansion
- Entropy/Narcissist
- Equal prime and composite sums
- Erdös-Selfridge categorization of primes
- Erdős-Nicolas numbers
- Erdős-primes
- Esthetic numbers
- Euclid-Mullin sequence
- Euclidean rhythm
- Euler method
- Euler's constant 0.5772...
- Euler's identity
- Events
- Executable library
- Execute Computer/Zero
- Execute a Markov algorithm
- Exponential digital sums
- Exponentiation with infix operators in (or operating on) the base
F
- Faces from a mesh
- Factorial base numbers indexing permutations of a collection
- Factorial primes
- Factorions
- Factorize string into Lyndon words
- Fairshare between two and more
- Farey sequence
- Fast Fourier transform
- Faulhaber's formula
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fermat numbers
- Fermat pseudoprimes
- Fibonacci word/fractal
- File extension is in extensions list
- File size distribution
- Find Chess960 starting position identifier
- Find duplicate files
- Find if a point is within a triangle
- Find largest left truncatable prime in a given base
- Find limit of recursion
- Find palindromic numbers in both binary and ternary bases
- Find the intersection of a line with a plane
- Find the intersection of two lines
- First class environments
- First perfect square in base n with n unique digits
- First power of 2 that has leading decimal digits of 12
- First-class functions
- First-class functions/Use numbers analogously
- Fivenum
- Fixed length records
- Flatten a list
- Flipping bits game
- Flow-control structures
- Floyd-Warshall algorithm
- Forbidden numbers
- Forest fire
- Fork
- Formal power series
- Fortunate numbers
- Four bit adder
- Four is magic
- Four is the number of letters in the ...
- Fraction reduction
- French Republican calendar
- Function composition
- Function frequency
- Function prototype
- Functional coverage tree
- Fusc sequence
G
- GSTrans string conversion
- GUI component interaction
- GUI enabling/disabling of controls
- GUI/Maximum window dimensions
- Gabow's algorithm
- Galton box animation
- Gapful numbers
- Gauss-Jordan matrix inversion
- Gaussian elimination
- Gaussian primes
- General FizzBuzz
- Generate random chess position
- Generator/Exponential
- Get system command output
- Giuga numbers
- Go Fish
- Goldbach's comet
- Golden ratio/Convergence
- Gotchas
- Graph colouring
- Grayscale image
- Greatest prime dividing the n-th cubefree number
- Greedy algorithm for Egyptian fractions
H
- HTTPS/Authenticated
- HTTPS/Client-authenticated
- Halt and catch fire
- Handle a signal
- Harmonic series
- Harriss Spiral
- Hash join
- Hashtron inference
- Hello world/Newbie
- Here document
- Heronian triangles
- Hex dump
- Hex words
- Higher-order functions
- History variables
- Hofstadter Figure-Figure sequences
- Hofstadter-Conway $10,000 sequence
- Home primes
- Honaker primes
- Honeycombs
- Hopcroft-Karp Algorithm
- Horse racing
- Hough transform
- Huffman coding
- Humble numbers
- Hunt the Wumpus
I
- I'm a software engineer, get me out of here
- Iccanobif primes
- Idiomatically determine all the characters that can be used for symbols
- Idiomatically determine all the lowercase and uppercase letters
- Idoneal numbers
- Image convolution
- Image noise
- Imaginary base numbers
- Inconsummate numbers in base 10
- Increasing gaps between consecutive Niven numbers
- Index finite lists of positive integers
- Inheritance/Multiple
- Inner classes
- Interactive programming (repl)
- Intersecting number wheels
- Introspection
- Inventory sequence
- Inverted index
- Inverted syntax
- Isograms and heterograms
- Iterated digits squaring
J
- JSON
- JSON pointer
- Jacobi symbol
- Jacobsthal numbers
- Jaro similarity
- Jaro-Winkler distance
- Jewels and stones
- Jordan-Pólya numbers
- JortSort
- Joystick position
- Juggler sequence
- Julia set
- Jump anywhere
K
- K-d tree
- K-means++ clustering
- Kernighans large earthquake problem
- Keyboard macros
- Klarner-Rado sequence
- Knapsack problem/0-1
- Knapsack problem/Bounded
- Knapsack problem/Continuous
- Knight's tour
- Knuth's algorithm S
- Knuth's power tree
- Koch curve
- Kolakoski sequence
- Kosaraju
- Kronecker product
- Kronecker product based fractals
L
- LU decomposition
- Lah numbers
- Largest int from concatenated ints
- Largest number divisible by its digits
- Latin Squares in reduced form
- Latin Squares in reduced form/Randomizing using Jacobson and Matthews' technique
- Law of cosines - triples
- Least m such that n! + m is prime
- Legendre prime counting function
- Levenshtein distance/Alignment
- List comprehensions
- List rooted trees
- Logistic curve fitting in epidemiology
- Long literals, with continuations
- Long primes
- Long year
- Longest common substring
- Longest increasing subsequence
- Longest string challenge
- Loop over multiple arrays simultaneously
- Loops/Continue
- Loops/With multiple ranges
- Lucky and even lucky numbers
- Lychrel numbers
- Lyndon word
M
- MAC vendor lookup
- Machine code
- Magic 8-ball
- Magic constant
- Magic numbers
- Magic squares of doubly even order
- Magic squares of singly even order
- Magnanimous numbers
- Main step of GOST 28147-89
- Man or boy test
- Mastermind
- Matrix chain multiplication
- Matrix digital rain
- Maximum triangle path sum
- Mayan calendar
- Mayan numerals
- Maze generation
- Maze solving
- McNuggets problem
- Median filter
- Meissel–Mertens constant
- Memory allocation
- Memory layout of a data structure
- Merge and aggregate datasets
- Mertens function
- Metallic ratios
- Metaprogramming
- Metered concurrency
- Metronome
- Mian-Chowla sequence
- Mind boggling card trick
- Minesweeper game
- Minimal steps down to 1
- Minimum multiple of m where digital sum equals m
- Minimum positive multiple in base 10 using only 0 and 1
- Minkowski question-mark function
- Modified random distribution
- Modular arithmetic
- Monads/List monad
- Monads/Maybe monad
- Monads/Writer monad
- Morse code
- Motzkin numbers
- Move-to-front algorithm
- Multi-base primes
- Multi-dimensional array
- Multiple regression
- Multisplit
- Munchausen numbers
- Munching squares
- Musical scale
- Mutex
- Möbius function
N
- N-smooth numbers
- Named parameters
- Naming conventions
- Narcissist
- Narcissistic decimal number
- Natural sorting
- Nested templated data
- Next highest int from digits
- Nim game
- Non-transitive dice
- Nonoblock
- Nonogram solver
- Null object
- Numbers k such that the last letter of k is the same as the first letter of k+1
- Numbers which are not the sum of distinct squares
- Numbers which are the cube roots of the product of their proper divisors
- Numbers with equal rises and falls
- Numeric error propagation
- Numerical and alphabetical suffixes
- Numerical integration
- Numerical integration/Gauss-Legendre Quadrature
O
- O'Halloran numbers
- OLE automation
- Object serialization
- Old Russian measure of length
- One-time pad
- One-two primes
- OpenGL
- OpenWebNet password
- Optional parameters
- Order by pair comparisons
- Order disjoint list items
- Ordered partitions
- Ormiston pairs
- Ormiston triples
- Own digits power sum
P
- P-Adic numbers, basic
- P-Adic square roots
- P-value correction
- Padovan n-step number sequences
- Padovan sequence
- Pairs with common factors
- Palindrome dates
- Palindromic gapful numbers
- Pan base non-primes
- Pancake numbers
- Parallel brute force
- Parallel calculations
- Parse an IP Address
- Parsing/RPN calculator algorithm
- Parsing/RPN to infix conversion
- Parsing/Shunting-yard algorithm
- Partial function application
- Particle fountain
- Partition an integer x into n primes
- Partition function P
- Pascal matrix generation
- Pascal's triangle/Puzzle
- Pathological floating point problems
- Peaceful chess queen armies
- Peano curve
- Pell numbers
- Pell's equation
- Penholodigital squares
- Penney's game
- Penta-power prime seeds
- Pentagram
- Pentomino tiling
- Percentage difference between images
- Percolation/Bond percolation
- Percolation/Mean cluster density
- Percolation/Mean run density
- Percolation/Site percolation
- Perfect shuffle
- Perfect totient numbers
- Periodic table
- Peripheral drift illusion
- Perlin noise
- Permutations by swapping
- Permutations/Derangements
- Permutations/Rank of a permutation
- Pierpont primes
- Pig the dice game
- Pig the dice game/Player
- Pinstripe/Display
- Pinstripe/Printer
- Piprimes
- Pisano period
- Plasma effect
- Play recorded sounds
- Playfair cipher
- Playing cards
- Plot coordinate pairs
- Pointers and references
- Polymorphic copy
- Polynomial long division
- Polynomial regression
- Polyspiral
- Pragmatic directives
- Primality by Wilson's theorem
- Prime numbers whose neighboring pairs are tetraprimes
- Prime reciprocal sum
- Prime triangle
- Primes - allocate descendants to their ancestors
- Primes: n*2^m+1
- Primorial numbers
- Priority queue
- Problem of Apollonius
- Product of min and max prime factors
- Pseudo-random numbers/Combined recursive generator MRG32k3a
- Pseudo-random numbers/Middle-square method
- Pseudo-random numbers/PCG32
- Pseudo-random numbers/Splitmix64
- Pseudo-random numbers/Xorshift star
- Pythagoras tree
- Pythagorean quadruples
Q
- QR decomposition
- Quad-power prime seeds
- Queue/Definition
- Queue/Usage
- Quickselect algorithm
- Quoting constructs
R
- RCRPG
- Radical of an integer
- Ramanujan primes/twins
- Ramanujan's constant
- Ramer-Douglas-Peucker line simplification
- Random Latin squares
- Random number generator (device)
- Random sentence from book
- Range consolidation
- Ranking methods
- Rare numbers
- Rate counter
- Ray-casting algorithm
- Recaman's sequence
- Record sound
- Reflection/Get source
- Reflection/List methods
- Reflection/List properties
- Regular expressions
- Rendezvous
- Repunit primes
- Resistor mesh
- Respond to an unknown method call
- Retrieve and search chat history
- Rhonda numbers
- Riordan numbers
- Roots of a function
- Rosetta Code/Count examples
- Rosetta Code/Find bare lang tags
- Rosetta Code/Find unimplemented tasks
- Rosetta Code/Fix code tags
- Rosetta Code/Rank languages by number of users
- Round-robin tournament schedule
- Runge-Kutta method
- Runtime evaluation
- Runtime evaluation/In an environment
- Ruth-Aaron numbers
S
- S-expressions
- SHA-256 Merkle tree
- SOAP
- SQL-based authentication
- Safe addition
- Safe primes and unsafe primes
- Sailors, coconuts and a monkey problem
- Same fringe
- Scope modifiers
- Scope/Function names and labels
- Sealed classes and methods
- Search a list
- Search a list of records
- Search in paragraph's text
- Secure temporary file
- Selectively replace multiple instances of a character within a string
- Self numbers
- Send an unknown method call
- Send email
- Sequence of primes by trial division
- Sequence of primorial primes
- 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 consolidation
- Set of real numbers
- Set puzzle
- Set right-adjacent bits
- Set, the card game
- Seven-sided dice from five-sided dice
- Sexy primes
- Shell one-liner
- Shoelace formula for polygonal area
- Shortest common supersequence
- Sierpinski arrowhead curve
- Sierpinski pentagon
- Sierpinski square curve
- Sieve of Pritchard
- Simple database
- Simple turtle graphics
- Simple windowed application
- Simulate input/Keyboard
- Simulate input/Mouse
- Singleton
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Traversal
- Singular value decomposition
- Sisyphus sequence
- Sleeping Beauty problem
- Smallest number k such that k+2^m is composite for all m less than k
- Smarandache prime-digital sequence
- Smarandache-Wellin primes
- Smith numbers
- Snake
- Sokoban
- Soloway's recurring rainfall
- Solve a Holy Knight's tour
- Solve a Hopido puzzle
- Solve a Numbrix puzzle
- Solve the no connection puzzle
- Sorensen–Dice coefficient
- Sort a list of object identifiers
- Sort an outline at every level
- Sort disjoint sublist
- Sort numbers lexicographically
- Sort stability
- Sort using a custom comparator
- Sorting Algorithms/Circle Sort
- Sorting algorithms/Bogosort
- Sorting algorithms/Cocktail sort with shifting bounds
- Sorting algorithms/Comb sort
- Sorting algorithms/Counting sort
- Sorting algorithms/Cycle sort
- Sorting algorithms/Gnome sort
- Sorting algorithms/Pancake sort
- Sorting algorithms/Patience sort
- Sorting algorithms/Permutation sort
- Sorting algorithms/Radix sort
- Sorting algorithms/Sleep sort
- Sorting algorithms/Stooge sort
- Sorting algorithms/Strand sort
- Soundex
- Special variables
- Speech synthesis
- Spelling of ordinal numbers
- Sphenic numbers
- Spinning rod animation/Text
- Split a character string based on change of character
- Square but not cube
- Square form factorization
- Square-free integers
- Stack traces
- State name puzzle
- Statistics/Basic
- Statistics/Normal distribution
- Steffensen's method
- Stern-Brocot sequence
- Stirling numbers of the first kind
- Stirling numbers of the second kind
- Straddling checkerboard
- Strassen's algorithm
- Stream merge
- Strong and weak primes
- Sub-unit squares
- Subleq
- Substitution cipher
- Successive prime differences
- Sudan function
- Sudoku
- Suffixation of decimal numbers
- Sum and product puzzle
- Sum to 100
- Summarize and say sequence
- Summarize primes
- Super-Poulet numbers
- Super-d numbers
- Superellipse
- Superpermutation minimisation
- Sutherland-Hodgman polygon clipping
- Sync subtitles
- Synchronous concurrency
- Syntax highlighting using Mediawiki formatting
T
- Table creation/Postal addresses
- Tarjan
- Tau function
- Tau number
- Taxicab numbers
- Teacup rim text
- Terminal control/Coloured text
- Terminal control/Cursor movement
- Terminal control/Hiding the cursor
- Terminal control/Inverse video
- Terminal control/Positional read
- Terminal control/Preserve screen
- Test a function
- Test integerness
- Text processing/1
- Text processing/2
- Textonyms
- The Name Game
- The sieve of Sundaram
- Thiele's interpolation formula
- Thue-Morse
- Tic-tac-toe
- Tokenize a string with escaping
- Tonelli-Shanks algorithm
- Top rank per group
- Topic variable
- Topological sort
- Topswops
- Total circles area
- Totient function
- Trabb Pardo–Knuth algorithm
- Transliterate English text using the Greek alphabet
- Tree datastructures
- Tree from nesting levels
- Tree traversal
- Triangular numbers
- Tropical algebra overloading
- Truncatable primes
- Truncate a file
- Truth table
- Tupper's self-referential formula
- Twelve statements
- Twin primes
- Twin primes whose sum is square number
- Two bullet roulette
- Two's complement
U
- UPC
- URL parser
- Ukkonen’s suffix tree construction
- Ulam spiral (for primes)
- Ultra useful primes
- Undulating numbers
- Unicode variable names
- Universal Lambda Machine
- Universal Turing machine
- Unprimeable numbers
- Untouchable numbers
- Update a configuration file
- Upside-down numbers
- Use another language to call a function
- User input/Graphical
V
- Validate International Securities Identification Number
- Vampire number
- Van Eck sequence
- Variable size/Get
- Variable size/Set
- Variadic fixed-point combinator
- Variadic function
- Vector
- Verhoeff algorithm
- Verify distribution uniformity/Chi-squared test
- Verify distribution uniformity/Naive
- Video display modes
- Vigenère cipher/Cryptanalysis
- Visualize a tree
- Vogel's approximation method
W
- Wagstaff primes
- Walsh matrix
- War card game
- Wasteful, equidigital and frugal numbers
- Water collected between towers
- Weird numbers
- Wieferich primes
- Wilson primes of order n
- Window creation/X11
- Window management
- Wireworld
- Wolstenholme numbers
- Word ladder
- Word search
- Word wheel
- Wordiff
- Wordle comparison
- World Cup group stage
- Worthwhile task shaving
- Write entire file
- Write to Windows event log
X
Y
Z
- Zebra puzzle
- Zeckendorf arithmetic
- Zeckendorf number representation
- Zhang-Suen thinning algorithm
- Zsigmondy numbers
- Zumkeller numbers
Draft tasks not implemented in Seed7
1
3
A
- A* search algorithm
- ABC incremental counts
- ASCII control characters
- Addition chains
- Addition-chain exponentiation
- Alternade words
- Append numbers at same position in strings
- Arithmetic coding/As a generalized change of radix
- Aspect oriented programming
- Assertions in design by contract
- Audio alarm
- Audio frequency generator
- Audio overlap loop
B
- B-spline
- Bacon cipher
- Banker's algorithm
- Base 16 numbers needing a to f
- Bilinear interpolation
- Binary coded decimal
- Bioinformatics/Subsequence
- Birthday problem
- Black box
- Blackjack strategy
- Boids
- Brace expansion using ranges
- Brzozowski algebraic method
C
- CLI-based maze-game
- CORDIC
- Calmo numbers
- CalmoSoft primes
- Card shuffles
- Carmichael lambda function
- Centroid of a set of N-dimensional points
- Change e letters to i in words
- Changeable words
- Chebyshev coefficients
- Checksumcolor
- Chemical calculator
- Chess player
- Cipolla's algorithm
- Code Golf: Code Golf
- Code segment unload
- Collect and sort square numbers in ascending order from three lists
- Color separation
- Combinations with repetitions/Square digit chain
- Common list elements
- Common sorted list
- Compiler/Preprocessor
- Compiler/Verifying syntax
- Concatenate two primes is also prime
- Conjugate a Latin verb
- Consistent overhead byte stuffing
- Continued fraction convergents
- Convert CSV records to TSV
- Coprime triplets
- Coprimes
- Count how many vowels and consonants occur in a string
- Count the coins/0-1
- Count the occurrence of each digit in e
- Countdown
- Create an executable for a program in an interpreted language
- Create an object/Native demonstration
- Create your own text control codes
- Cross compilation
- Cubic special primes
- Curve that touches three points
- Cycle detection
D
- Data Encryption Standard
- Day of the week of Christmas and New Year
- Days between dates
- Decimal floating point number to binary
- Decision tables
- Decreasing contiguous subsequences
- Diophantine linear system solving
- Discrete Fourier transform
- Distinct palindromes within decimal numbers
- Distinct power numbers
- Divide a rectangle into a number of unequal triangles
- Double Twin Primes
- Doubly-linked list/Element removal
- Draw pixel 2
E
- Eisenstein primes
- Elevator simulation
- English cardinal anagrams
- Erdős–Woods numbers
- Even numbers which cannot be expressed as the sum of two twin primes
- Exactly three adjacent 3 in lists
- Execute CopyPasta Language
- Extended Straddling Checkerboard
- External sort
- Extra primes
- Extract file extension
- Extreme primes
F
- Factor-perfect numbers
- Fibonacci heap
- Fibonacci matrix-exponentiation
- Find URI in text
- Find adjacent primes which differ by a square integer
- Find first missing positive
- Find minimum number of coins that make a given value
- Find square difference
- Find squares n where n+1 is prime
- Find words which contain all the vowels
- Find words which contain the most consonants
- Find words which contains more than 3 e vowels
- Find words whose first and last three letters are equal
- Finite state machine
- First 9 prime Fibonacci number
- Four sides of square
- Free polyominoes enumeration
- Frobenius numbers
G
- Generalised floating point addition
- Generalised floating point multiplication
- Generate random numbers without repeating a value
- Geohash
- Geometric algebra
- Getting the number of decimal places
- Goodstein Sequence
- Gradient descent
- Greed
H
I
- IPC via named pipe
- IRC gateway
- Implicit type conversion
- Input/Output for lines of text
- Input/Output for pairs of numbers
- Integer long division
- Integer roots
- Interactive help
- Iterators
J
K
L
- L-system
- Lagrange Interpolation
- Largest difference between adjacent primes
- Largest five adjacent number
- Largest palindrome product
- Largest prime factor
- Largest product in a grid
- Last list item
- Launch rocket with countdown and acceleration in stdout
- Length of an arc between two angles
- Line circle intersection
- Linux CPU utilization
- Long stairs
- Longest common prefix
- Longest common suffix
- Longest palindromic substrings
- Longest substrings without repeating characters
- Lucas-Carmichael numbers
- Lunar arithmetic
M
- Make a backup file
- Marching squares
- Markov chain text generator
- Matrix with two diagonals
- Maximum difference between adjacent elements of list
- McNaughton-Yamada-Thompson algorithm
- Mersenne primes
- Minimum number of cells after, before, above and below NxN squares
- Minimum numbers of three lists
- Minimum primes
- Modulinos
- Montgomery reduction
- Morpion solitaire
- Mosaic matrix
- Most frequent k chars distance
- Multidimensional Newton-Raphson method
- Multiline shebang
- Multiplicatively perfect numbers
- Multiton
N
- N-body problem
- N-grams
- N-queens minimum and knights and bishops
- NYSIIS
- Names to numbers
- Native shebang
- Neighbour primes
- Next special primes
- Nimber arithmetic
- Number triplets game
- Numbers divisible by their individual digits, but not by the product of their digits.
- Numbers in base-16 representation that cannot be written with decimal digits
- Numbers k whose divisor sum is equal to the divisor sum of k + 1
- Numbers whose binary and ternary digit sums are prime
- Numbers whose count of divisors is prime
- Numbers with prime digits whose sum is 13
- Numbers with same digit set in base 10 and base 16
- Numeric separator syntax
- Numerical integration/Adaptive Simpson's method
O
- Odd and square numbers
- Odd squarefree semiprimes
- Odd words
- OpenGL pixel shader
- OpenGL/Utah teapot
- Orbital elements
- Overloaded operators
P
- Palindromic primes
- Pandigital prime
- Parse EBNF
- Parse command-line arguments
- Particle swarm optimization
- Penrose tiling
- Perceptron
- Permutations with repetitions
- Permutations with some identical elements
- Permuted multiples
- Pollard's rho algorithm
- Polynomial derivative
- Polynomial synthetic division
- Posit numbers/decoding
- Posit numbers/encoding
- Positive decimal integers with the digit 1 occurring exactly twice
- Powerful numbers
- Practical numbers
- Price list behind API
- Prime numbers of measurement
- Prime numbers p for which the sum of primes less than or equal to p is prime
- Prime numbers which contain 123
- Prime triplets
- Prime words
- Primes which contain only one odd digit
- Primes whose first and last number is 3
- Primes whose sum of digits is 25
- Print debugging statement
- Print itself
- Process SMIL directives in XML data
- Product of divisors
- Proof
- Protecting Memory Secrets
- Pseudorandom number generator image
Q
R
- Railway circuit
- Rainbow
- Ramanujan primes
- Ramsey's theorem
- Range modifications
- Raster bars
- Readline interface
- Recursive descent parser generator
- Red black tree sort
- Remote agent/Agent interface
- Remote agent/Agent logic
- Remote agent/Simulation
- Remove vowels from a string
- Resistance calculator
- Resistance network calculator
- Reverse the gender of a string
- Reverse the order of lines in a text file while preserving the contents of each line
- Rice coding
- Robots
- Rodrigues’ rotation formula
- Roots of a cubic polynomial
- Rosetta Code/List authors of task descriptions
- Rosetta Code/Run examples
- Rosetta Code/Tasks without examples
- Run as a daemon or service
S
- SEND + MORE = MONEY
- Safe and Sophie Germain primes
- Safe mode
- Sanitize user input
- Sattolo cycle
- Segmentation fault protection
- Selection bias in clinical sciences
- Selective file copy
- Self-hosting compiler
- Separate the house number from the street name
- Shape-Machine
- Shift list elements to left by 3
- Sierpinski curve
- Sign of an integer (signum)
- Simulated annealing
- Simulated optics experiment/Data analysis
- Simulated optics experiment/Simulator
- Sine wave
- Singly-linked list/Element removal
- Singly-linked list/Reversal
- Smallest enclosing circle problem
- Smallest multiple
- Smallest numbers
- Smallest power of 6 whose decimal expansion contains n
- Smallest square that begins with n
- Snake and ladder
- Solve a Rubik's cube
- Solve equations with substitution method
- Solve hanging lantern problem
- Solve triangle solitaire puzzle
- Solving coin problems
- Sort primes from list to a list
- Sort the letters of string in alphabetical order
- Sorting algorithms/Tree sort on a linked list
- Special divisors
- Special neighbor primes
- Special pythagorean triplet
- Spoof game
- Square root by hand
- Starting a web browser
- Statistics/Chi-squared distribution
- Steady squares
- Strange numbers
- Strange unique prime triplets
- Sturmian word
- Subset sum problem
- Substring primes
- Suffix tree
- Sum data type
- Sum of divisors
- Sum of primes in odd positions is prime
- Sum of square and cube digits of an integer are primes
- Sum of the digits of n is substring of n
- Sum of two adjacent numbers are primes
- Summation of primes
- Sunflower fractal
- Szymański's algorithm
T
- Table creation
- Tamagotchi emulator
- Terminal control/Restricted width positional input/No wrapping
- Terminal control/Restricted width positional input/With wrapping
- Tetris
- Text between
- Text completion
- Text to HTML
- The ISAAC cipher
- Three word location
- Time conventions and conversions
- Time-based one-time password algorithm
- Topological sort/Extracted top item
- Transportation problem
- Two identical strings
- Two sum
- Type detection
U
- URL shortener
- Ulam numbers
- Unescape a string
- Unicode polynomial equation
- Unique characters
- Unique characters in each string
- Unit testing
- Uno (card game)
- Untrusted environment
- Use a REST API
- Useless instructions
- User defined pipe and redirection operators
- Using a speech engine to highlight words
V
W
- Wave function collapse
- Waveform analysis/Doh ray me
- Waveform analysis/Top and tail
- Weather routing
- WebGL rotating F
- Welch's t-test
- WiktionaryDumps to words
- Words containing "the" substring
- Words from neighbour ones
X
Tasks omitted from Seed7
End of List
Again, feel free to try your hand at any of the tasks listed on this page.