Tasks not implemented in Applesoft BASIC
A manually generated list of unimplemented tasks as of February 23, 2023
15 puzzle game | 15 puzzle solver | 24 game/Solve | 9 billion names of God the integer
A
Abbreviations, automatic | Abbreviations, easy | Abbreviations, simple | ABC problem | Abelian sandpile model | Abelian sandpile model/Identity | Abstract type | Abundant, deficient and perfect number classifications | 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 | AKS test for primes | Algebraic data types | Align columns | Aliquot sequence classifications | Almkvist-Giullera formula for pi | Almost prime | Amb | Amicable pairs | Anagrams | Anagrams/Deranged anagrams | Angle difference between two bearings | Angles (geometric), normalization and conversion | 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) | Arena storage pool | Arithmetic/Complex | Arithmetic derivative | Arithmetic evaluation | Arithmetic-geometric mean | Arithmetic-geometric mean/Calculate Pi | Arithmetic numbers | Arithmetic/Rational | Ascending primes | ASCII art diagram converter | Assertions | Associative array/Creation | Associative array/Iteration | Associative array/Merging | Atomic updates | Attractive numbers | Average loop length | Averages/Mean angle | Averages/Mean time of day | Averages/Mode | Averages/Pythagorean means | Averages/Simple moving average | AVL tree
B
Babylonian spiral | Balanced brackets | Balanced ternary | Base64 decode data | Benford's law | Bernoulli numbers | Best shuffle | Binary search | Bin given limits | Bioinformatics/base count | Bioinformatics/Global alignment | Bioinformatics/Sequence mutation | Biorhythms | Bitcoin/address validation | Bitcoin/public point to address | Bitmap/Bézier curves/Cubic | Bitmap/Bézier curves/Quadratic | Bitmap/Histogram | Bitmap/PPM conversion through a pipe | Bitmap/Read an image through a pipe | Bitmap/Read a PPM file | Bitwise IO | Bitwise operations | Box the compass | Boyer-Moore string search | Brace expansion | Brazilian numbers | Break OO privacy | Brilliant numbers | Bulls and cows/Player | Burrows–Wheeler transform
C
Calendar | Calendar - for "REAL" programmers | Calkin-Wilf sequence | Call a foreign-language function | Call a function | Call a function in a shared library | Call an object method | Camel case and snake case | Canny edge detector | Canonicalize CIDR | Cantor set | 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 | Catmull–Clark subdivision surface | Chaocipher | Chat server | Check input device is a terminal | Check Machin-like formulas | Check output device is a terminal | Checkpoint synchronization | Chernick's Carmichael numbers | Cheryl's birthday | Chinese remainder theorem | Chinese zodiac | Cholesky decomposition | Chowla numbers | Church numerals | Circles of given radius through two points | Circular primes | Cistercian numerals | Classes | Closest-pair problem | Closures/Value capture | Collections | Colorful numbers | Color quantization | Colour pinstripe/Display | Colour pinstripe/Printer | Combinations | Combinations and permutations | Combinations with repetitions | Command-line arguments | Comma quibbling | Commatizing numbers | Compare a list of strings | Compare sorting algorithms' performance | Compiler/AST interpreter | Compiler/code generator | Compiler/lexical analyzer | Compiler/syntax analyzer | Compiler/virtual machine interpreter | Compile-time calculation | Composite numbers k with no single digit factors whose factors are all substrings of k | Compound data type | 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 | Convert decimal number to rational | Convex hull | Conway's Game of Life | Cramer's rule | CSV data manipulation | Cuban primes | Cullen and Woodall numbers | Cumulative standard deviation | Currency | Currying | Curzon numbers | CUSIP | Cut a rectangle | Cyclops numbers | Cyclotomic polynomial
D
Damm algorithm | Date format | Date manipulation | Deal cards for FreeCell | Death Star | De Bruijn sequences | Deceptive numbers | Deconvolution/1D | Deconvolution/2D+ | Deepcopy | Define a primitive data type | Delegates | Deming's funnel | Descending primes | Determinant and permanent | Determine if a string has all unique characters | Determine if a string is collapsible | Determine if a string is numeric | 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 | Dinesman's multiple-dwelling problem | Dining philosophers | Disarium numbers | Discordian date | 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 | DNS query | Documentation | Dominoes | Doomsday rule | Doubly-linked list/Definition | Doubly-linked list/Element definition | Doubly-linked list/Element insertion | Draw a clock | Draw a cuboid | Draw a pixel | Draw a rotating cube | Draw a sphere | Duffinian numbers | Dynamic variable names
D
Earliest difference between prime gaps | Eban numbers | Echo server | Eertree | Egyptian division | EKG sequence convergence | Elementary cellular automaton | Elementary cellular automaton/Infinite length | Elementary cellular automaton/Random number generator | Element-wise operations | Elliptic curve arithmetic | Elliptic Curve Digital Signature Algorithm | Emirp primes | Empty directory | Enforced immutability | Entropy | Entropy/Narcissist | Enumerations | Environment variables | Equal prime and composite sums | Equilibrium index | Erdős-Nicolas numbers | Erdös-Selfridge categorization of primes | Esthetic numbers | Ethiopian multiplication | Euclid-Mullin sequence | Euler's constant 0.5772... | Euler's identity | Euler's sum of powers conjecture | Euler method | Evaluate binomial coefficients | Events | Evolutionary algorithm | Exceptions/Catch an exception thrown in a nested call | Executable library | Execute a Markov algorithm | Execute SNUSP | Exponentiation operator | Extend your language | Extensible prime generator | Extreme floating point values
F
Faces from a mesh | Factorial base numbers indexing permutations of a collection | Factorial primes | Factors of a Mersenne number | Fairshare between two and more | Farey sequence | FASTA format | Fast Fourier transform | Faulhaber's formula | Faulhaber's triangle | Feigenbaum constant calculation | Fermat numbers | Fibonacci n-step number sequences | Fibonacci word | Fibonacci word/fractal | File extension is in extensions list | File modification time | File size | File size distribution | Filter | Find Chess960 starting position identifier | Find common directory path | Find duplicate files | Find if a point is within a triangle | Find largest left truncatable prime in a given base | 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 | First class environments | First-class functions | First-class functions/Use numbers analogously | First perfect square in base n with n unique digits | First power of 2 that has leading decimal digits of 12 | Fivenum | Five weekends | Fixed length records | Flatten a list | Flipping bits game | Flow-control structures | Floyd-Warshall algorithm | Fork | Formal power series | Formatted numeric output | Fortunate numbers | Forward difference | Four is magic | Four is the number of letters in the ... | Fractal tree | Fraction reduction | Fractran | French Republican calendar | FTP | Functional coverage tree | Function frequency | Function prototype | Fusc sequence
G
Galton box animation | Gamma function | Gaussian elimination | Gauss-Jordan matrix inversion | General FizzBuzz | Generate Chess960 starting position | Generate random chess position | Generator/Exponential | Giuga numbers | Globally replace text in several files | Go Fish | Goldbach's comet | Gotchas | Graph colouring | Gray code | Grayscale image | Greatest subsequential sum | Greedy algorithm for Egyptian fractions | Greyscale bars/Display | Guess the number/With feedback (player) | GUI component interaction | GUI enabling/disabling of controls | GUI/Maximum window dimensions
H
Hamming numbers | Handle a signal | Harmonic series | Harshad or Niven series | Hash from two arrays | Hash join | Haversine formula | Hello world/Standard error | Hello world/Web server | Heronian triangles | Hex words | Hickerson series of almost integers | Higher-order functions | Hilbert curve | History variables | Hofstadter-Conway $10,000 sequence | Hofstadter Figure-Figure sequences | Hofstadter Q sequence | Holidays related to Easter | Home primes | Honeycombs | Horizontal sundial calculations | Horner's rule for polynomial evaluation | Hostname | Hough transform | HTTP | HTTPS | HTTPS/Authenticated | HTTPS/Client-authenticated | Huffman coding | Humble numbers | Hunt the Wumpus
I
I'm a software engineer, get me out of here | IBAN | I before E except after C | Idiomatically determine all the characters that can be used for symbols | Idiomatically determine all the lowercase and uppercase letters | Image convolution | Image noise | Imaginary base numbers | Increasing gaps between consecutive Niven numbers | Index finite lists of positive integers | Infinity | Inheritance/Multiple | Inheritance/Single | Intersecting number wheels | Introspection | Inverted index | Inverted syntax | ISBN13 check digit | Isograms and heterograms | Isqrt (integer square root) of X | Iterated digits squaring |
J
Jacobi symbol | Jacobsthal numbers | Jaro similarity | Jaro-Winkler distance | Jensen's Device | Jewels and stones | JortSort | JSON | Juggler sequence | Julia set
K
Kaprekar numbers | K-d tree | Kernighans large earthquake problem | Keyboard macros | K-means++ clustering | Knapsack problem/0-1 | Knapsack problem/Bounded | Knapsack problem/Continuous | Knapsack problem/Unbounded | Knight's tour | Knuth's algorithm S | Knuth's power tree | Koch curve | Kolakoski sequence | Kosaraju | Kronecker product | Kronecker product based fractals
L
Lah numbers | Largest int from concatenated ints | Largest number divisible by its digits | Largest proper divisor of n | Last Friday of each month | Last letter-first letter | Latin Squares in reduced form | Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique | Law of cosines - triples | Left factorials | Legendre prime counting function | Leonardo numbers | Levenshtein distance | Levenshtein distance/Alignment | Linear congruential generator | List comprehensions | List rooted trees | Literals/Integer | Logical operations | Logistic curve fitting in epidemiology | Longest common subsequence | Longest increasing subsequence | Longest string challenge | Long literals, with continuations | Long primes | Look-and-say sequence | Loop over multiple arrays simultaneously | Loops/Foreach | Loops/Increment loop index within loop body | Lucas-Lehmer test | Lucky and even lucky numbers | LU decomposition | Ludic numbers | Luhn test of credit card numbers | Lychrel numbers | LZW compression
M
MAC vendor lookup | Magic constant | Magic squares of doubly even order | Magic squares of singly even order | Magnanimous numbers | Main step of GOST 28147-89 | Make directory path | Man or boy test | Map range | Mastermind | Matrix chain multiplication | Matrix digital rain | Matrix-exponentiation operator | Matrix transposition | Maximum triangle path sum | Mayan calendar | Mayan numerals | Maze generation | Maze solving | McNuggets problem | MD4 | MD5 | MD5/Implementation | 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 | Miller–Rabin primality test | 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 | Möbius function | Modified random distribution | Modular arithmetic | Modular exponentiation | Modular inverse | Monads/List monad | Monads/Maybe monad | Monads/Writer monad | Monte Carlo methods | Monty Hall problem | Morse code | Motzkin numbers | Mouse position | Move-to-front algorithm | Multi-base primes | Multi-dimensional array | Multifactorial | Multiple distinct objects | Multiple regression | Multiplicative order | Multisplit | Munchausen numbers | Musical scale | Mutex | Mutual recursion
N
Naming conventions | Narcissist | Narcissistic decimal number | Natural sorting | Nautical bell | Negative base numbers | Nested function | Nested templated data | Next highest int from digits | Non-continuous subsequences | Non-decimal radices/Convert | Non-decimal radices/Input | Non-decimal radices/Output | Nonoblock | Nonogram solver | Non-transitive dice | N-queens problem | N-smooth numbers | Nth root | 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 | Numerical and alphabetical suffixes | Numerical integration | Numerical integration/Gauss-Legendre Quadrature | Numeric error propagation
O
Object serialization | Odd word problem | Old Russian measure of length | OLE automation | One-dimensional cellular automata | One-time pad | OpenGL | OpenWebNet password | Operator precedence | Optional parameters | Order by pair comparisons | Order disjoint list items | Ordered partitions | Ordered words | Order two numerical lists
P
P-Adic numbers, basic | P-Adic square roots | Padovan n-step number sequences | Padovan sequence | Palindrome dates | Palindromic gapful numbers | Pancake numbers | Paraffins | Parallel brute force | Parallel calculations | Parameterized SQL statement | Parametric polymorphism | 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's triangle | Pascal's triangle/Puzzle | Pascal matrix generation | Pathological floating point problems | Peaceful chess queen armies | Peano curve | Pell's equation | Pell numbers | Pentomino tiling | Percentage difference between images | Percolation/Bond percolation | Percolation/Mean cluster density | Percolation/Mean run density | Percolation/Site percolation | Perfect numbers | Perfect shuffle | Perfect totient numbers | Peripheral drift illusion | Perlin noise | Permutations | Permutations by swapping | Permutations/Derangements | Permutations/Rank of a permutation | Permutation test | Pernicious numbers | Phrase reversals | Pi | Pierpont primes | Pig the dice game | Pig the dice game/Player | Pinstripe/Display | Pinstripe/Printer | Pisano period | Plasma effect | Playfair cipher | Playing cards | Play recorded sounds | Plot coordinate pairs | Pointers and references | Poker hand analyser | Polymorphic copy | Polymorphism | Polynomial long division | Polynomial regression | Polyspiral | Population count | Power set | Pragmatic directives | Price fraction | Primality by trial division | Primality by Wilson's theorem | Prime conspiracy | Primes - allocate descendants to their ancestors | Prime triangle | Primorial numbers | Priority queue | Probabilistic choice | Problem of Apollonius | Proper divisors | 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 | P-value correction | Pythagoras tree | Pythagorean quadruples | Pythagorean triples
Q
QR decomposition | Quaternion type | Queue/Usage | Quickselect algorithm
R
Ramanujan's constant | Ramanujan primes/twins | Ramer-Douglas-Peucker line simplification | Random Latin squares | Random number generator (device) | Random number generator (included) | Random sentence from book | Range consolidation | Range expansion | Range extraction | Ranking methods | Rare numbers | Rate counter | Ray-casting algorithm | RCRPG | Read a configuration file | Read a file character by character/UTF8 | Read a file line by line | Read a specific line from a file | Real constants and functions | Recaman's sequence | Record sound | Reduced row echelon form | Reflection/Get source | Reflection/List methods | Reflection/List properties | Regular expressions | Remove lines from a file | Rendezvous | Rep-string | Repunit primes | Resistor mesh | Respond to an unknown method call | Retrieve and search chat history | Return multiple values | Rhonda numbers | RIPEMD-160 | Rock-paper-scissors | Roots of a function | Roots of a quadratic function | Roots of unity | 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 | Rosetta Code/Rank languages by popularity | RPG attributes generator | RSA code | Runge-Kutta method | Run-length encoding | Runtime evaluation | Runtime evaluation/In an environment | Ruth-Aaron numbers
S
Safe addition | Safe primes and unsafe primes | Sailors, coconuts and a monkey problem | Same fringe | Scope/Function names and labels | Search a list | Search a list of records | Search in paragraph's text | Secure temporary file | SEDOLs | Selectively replace multiple instances of a character within a string | Self-describing numbers | Self numbers | Semiprime | Semordnilap | Send an unknown method call | Send email | Sequence: nth number with exactly n divisors | Sequence of non-squares | Sequence of primes by trial division | Sequence of primorial primes | 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 | Set right-adjacent bits | Seven-sided dice from five-sided dice | S-expressions | Sexy primes | SHA-1 | SHA-256 | SHA-256 Merkle tree | Shell one-liner | Shoelace formula for polygonal area | Short-circuit evaluation | Shortest common supersequence | Show the epoch | Sierpinski arrowhead curve | Sierpinski pentagon | Sierpinski square curve | Sierpinski triangle | Sierpinski triangle/Graphical | Sieve of Pritchard | Simple database | Simple turtle graphics | Simple windowed application | Simulate input/Mouse | Singleton | Singly-linked list/Element definition | Singly-linked list/Element insertion | Singly-linked list/Traversal | Singular value decomposition | Sleeping Beauty problem | Smallest number k such that k+2^m is composite for all m less than k | Smarandache prime-digital sequence | Smith numbers | Snake | SOAP | Sockets | Sokoban | 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 an outline at every level | Sort disjoint sublist | Sorting algorithms/Bead sort | Sorting algorithms/Bogosort | Sorting Algorithms/Circle Sort | Sorting algorithms/Cocktail sort | Sorting algorithms/Cocktail sort with shifting bounds | Sorting algorithms/Comb sort | Sorting algorithms/Counting 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 | Sort numbers lexicographically | Sort stability | Sort three variables | Sort using a custom comparator | Soundex | Sparkline in unicode | Special characters | Special variables | Speech synthesis | Spelling of ordinal numbers | Sphenic numbers | Spinning rod animation/Text | Spiral matrix | Split a character string based on change of character | SQL-based authentication | Square but not cube | Square form factorization | Square-free integers | Stable marriage problem | 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 | Strassen's algorithm | Stream merge | String interpolation (included) | Strip block comments | Strip control codes and extended characters from a string | Strip whitespace from a string/Top and tail | Strong and weak primes | Subleq | Substitution cipher | Substring/Top and tail | Subtractive generator | Successive prime differences | Sudan function | Sudoku | Suffixation of decimal numbers | Sum and product puzzle | Summarize and say sequence | Summarize primes | Sum of a series | Sum of elements below main diagonal of matrix | Sum of squares | Sum to 100 | Super-d numbers | Superellipse | Superpermutation minimisation | Sutherland-Hodgman polygon clipping | Sylvester's sequence | Symmetric difference | Synchronous concurrency | System time
T
Table creation/Postal addresses | Take notes on the command line | Tarjan | Tau function | Tau number | Taxicab numbers | Teacup rim text | Temperature conversion | Terminal control/Coloured text | Terminal control/Unicode output | Ternary logic | Test a function | Test integerness | Textonyms | Text processing/1 | Text processing/2 | Text processing/Max licenses in use | The Name Game | The sieve of Sundaram | The Twelve Days of Christmas | Thiele's interpolation formula | Thue-Morse | Tic-tac-toe | Time a function | Tokenize a string with escaping | Tonelli-Shanks algorithm | Topic variable | Topological sort | Top rank per group | Topswops | Total circles area | Totient function | Towers of Hanoi | Trabb Pardo–Knuth algorithm | Tree datastructures | Tree from nesting levels | Tree traversal | Tropical algebra overloading | Truncatable primes | Truncate a file | Truth table | Twelve statements | Two's complement | Two bullet roulette
U
Ukkonen’s suffix tree construction | Ulam spiral (for primes) | Ultra useful primes | Unbias a random generator | Undefined values | Unicode strings | Unicode variable names | Universal Turing machine | Unix/ls | Unprimeable numbers | Untouchable numbers | UPC | Update a configuration file | URL decoding | URL parser | Use another language to call a function | User input/Graphical | UTF-8 encode and decode
V
Validate International Securities Identification Number | Vampire number | Van der Corput sequence | Van Eck sequence | Variable declaration reset | Variable-length quantity | Vector | Vector products | Verhoeff algorithm | Verify distribution uniformity/Chi-squared test | Verify distribution uniformity/Naive | Vigenère cipher/Cryptanalysis | Visualize a tree | Vogel's approximation method | Voronoi diagram
W
Wagstaff primes | Walk a directory/Non-recursively | Walk a directory/Recursively | War card game | Water collected between towers | Web scraping | Weird numbers | Wieferich primes | Wilson primes of order n | Window creation | Window creation/X11 | Window management | Wireworld | Word frequency | Wordiff | Word ladder | Word search | Word wheel | Word wrap | World Cup group stage | Write to Windows event log
X
Xiaolin Wu's line algorithm | XML/DOM serialization | XML/Input | XML/XPath
Y
Yahoo! search interface | Y combinator | Yellowstone sequence
Z
Zebra puzzle | Zeckendorf arithmetic | Zeckendorf number representation | Zhang-Suen thinning algorithm | Zumkeller numbers
end of the manually generated list of unimplemented tasks
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Tasks not implemented in Applesoft_BASIC
1
2
9
A
- ABC problem
- ADFGVX cipher
- AKS test for primes
- ASCII art diagram converter
- AVL tree
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abelian sandpile model
- Abelian sandpile model/Identity
- Abundant odd numbers
- Abundant, deficient and perfect number classifications
- Accumulator factory
- Achilles numbers
- Active Directory/Connect
- Active Directory/Search for a user
- Active object
- Algebraic data types
- Align columns
- Aliquot sequence classifications
- Almkvist-Giullera formula for pi
- Almost prime
- Amb
- Amicable pairs
- Anadromes
- Anagram generator
- Anagrams
- Anagrams/Deranged anagrams
- Angle difference between two bearings
- Angles (geometric), normalization and conversion
- 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)
- Arena storage pool
- Arithmetic derivative
- Arithmetic evaluation
- Arithmetic numbers
- Arithmetic-geometric mean/Calculate Pi
- Arithmetic/Complex
- Arithmetic/Rational
- Ascending primes
- Assertions
- Associative array/Merging
- Atomic updates
- Attractive numbers
- Average loop length
- Averages/Mean angle
- Averages/Mean time of day
- Averages/Mode
- Averages/Pythagorean means
- Averages/Simple moving average
B
- Babylonian spiral
- Balanced ternary
- Base64 decode data
- Benford's law
- Bernoulli numbers
- Bernstein basis polynomials
- Best shuffle
- Bin given limits
- Bioinformatics/Global alignment
- Bioinformatics/Sequence mutation
- Bioinformatics/base count
- Biorhythms
- Bitcoin/address validation
- Bitcoin/public point to address
- Bitmap/Bézier curves/Cubic
- Bitmap/Bézier curves/Quadratic
- Bitmap/Histogram
- Bitmap/PPM conversion through a pipe
- Bitmap/Read a PPM file
- Bitmap/Read an image through a pipe
- Bitwise IO
- Bitwise operations
- Blum integer
- Boustrophedon transform
- Box the compass
- Boyer-Moore string search
- Brace expansion
- Brazilian numbers
- Break OO privacy
- Brilliant numbers
- Bulls and cows/Player
- Burrows–Wheeler transform
- Bézier curves/Intersections
C
- CSV data manipulation
- CUSIP
- Calendar
- Calendar - for "REAL" programmers
- Calkin-Wilf sequence
- Call a foreign-language function
- Call a function
- Call a function in a shared library
- Call an object method
- Camel case and snake case
- Canny edge detector
- Canonicalize CIDR
- Cantor set
- Carmichael 3 strong pseudoprimes
- Casting out nines
- Catamorphism
- Catmull–Clark subdivision surface
- Centre and radius of a circle passing through 3 points in a plane
- Chaocipher
- Chat server
- Check Machin-like formulas
- 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
- Chinese remainder theorem
- Chinese zodiac
- Cholesky decomposition
- Chowla numbers
- Church numerals
- Circles of given radius through two points
- Circular primes
- Cistercian numerals
- Classes
- Closest-pair problem
- Closures/Value capture
- Collections
- Color quantization
- Colorful numbers
- Colour pinstripe/Display
- Colour pinstripe/Printer
- Combinations
- Combinations and permutations
- Combinations with repetitions
- Comma quibbling
- Command-line arguments
- Commatizing numbers
- Compare a list of strings
- Compare sorting algorithms' performance
- Compile-time calculation
- Compiler/AST interpreter
- 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
- Compound data type
- 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 decimal number to rational
- Convex hull
- Conway's Game of Life
- Cramer's rule
- Cuban primes
- Cumulative standard deviation
- Currency
- Currying
- Curzon numbers
- Cut a rectangle
- Cycles of a permutation
- Cyclops numbers
- Cyclotomic polynomial
D
- DNS query
- Damm algorithm
- Date format
- Date manipulation
- De Bruijn sequences
- De Polignac numbers
- Deal cards for FreeCell
- Death Star
- Deceptive numbers
- Deconvolution/1D
- Deconvolution/2D+
- Decorate-sort-undecorate idiom
- Deepcopy
- Define a primitive data type
- Delegates
- Deming's funnel
- Descending primes
- Determinant and permanent
- Determine if a string has all unique characters
- Determine if a string is collapsible
- Determine if a string is numeric
- 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
- Dinesman's multiple-dwelling problem
- Dining philosophers
- Disarium numbers
- Discordian date
- 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
- Draw a clock
- Draw a cuboid
- Draw a rotating cube
- Draw a sphere
- Dynamic variable names
E
- EKG sequence convergence
- Earliest difference between prime gaps
- Eban numbers
- Echo server
- Eertree
- 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
- Empty directory
- Enforced immutability
- Entropy
- Entropy/Narcissist
- Enumerations
- Environment variables
- Equal prime and composite sums
- Equilibrium index
- Erdös-Selfridge categorization of primes
- Erdős-Nicolas numbers
- Esthetic numbers
- Euclid-Mullin sequence
- Euclidean rhythm
- Euler's constant 0.5772...
- Euler's identity
- Euler's sum of powers conjecture
- Evaluate binomial coefficients
- Events
- Evolutionary algorithm
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute SNUSP
- Execute a Markov algorithm
- Exponentiation operator
- Extend your language
- Extensible prime generator
- Extreme floating point values
F
- FASTA format
- FTP
- Faces from a mesh
- Factorial base numbers indexing permutations of a collection
- Factorial primes
- Factorize string into Lyndon words
- Factors of a Mersenne number
- Fairshare between two and more
- Farey sequence
- Fast Fourier transform
- Faulhaber's formula
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fermat numbers
- Fermat pseudoprimes
- Fibonacci n-step number sequences
- Fibonacci word
- Fibonacci word/fractal
- File extension is in extensions list
- File modification time
- File size
- File size distribution
- Filter
- Find Chess960 starting position identifier
- Find common directory path
- Find duplicate files
- Find if a point is within a triangle
- Find largest left truncatable prime in a given base
- 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
- 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
- Five weekends
- Fivenum
- Fixed length records
- Flatten a list
- Flipping bits game
- Flow-control structures
- Floyd-Warshall algorithm
- Fork
- Formal power series
- Formatted numeric output
- Fortunate numbers
- Forward difference
- Four is magic
- Four is the number of letters in the ...
- Fractal tree
- Fraction reduction
- Fractran
- French Republican calendar
- Function frequency
- Function prototype
- Functional coverage tree
- Fusc sequence
G
- GSTrans string conversion
- GUI/Maximum window dimensions
- Galton box animation
- Gamma function
- Gauss-Jordan matrix inversion
- Gaussian elimination
- Gaussian primes
- General FizzBuzz
- Generate Chess960 starting position
- Generate random chess position
- Generator/Exponential
- Giuga numbers
- Globally replace text in several files
- Go Fish
- Goldbach's comet
- Gotchas
- Graph colouring
- Gray code
- Grayscale image
- Greatest prime dividing the n-th cubefree number
- Greatest subsequential sum
- Greedy algorithm for Egyptian fractions
- Greyscale bars/Display
- Guess the number/With feedback (player)
H
- HTTPS/Authenticated
- HTTPS/Client-authenticated
- Hamming numbers
- Handle a signal
- Harshad or Niven series
- Hash from two arrays
- Hash join
- Hashtron inference
- Hello world/Web server
- Heronian triangles
- Hex dump
- Hex words
- Hickerson series of almost integers
- Higher-order functions
- Hilbert curve
- History variables
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Hofstadter-Conway $10,000 sequence
- Holidays related to Easter
- Home primes
- Honaker primes
- Honeycombs
- Horizontal sundial calculations
- Hostname
- Hough transform
- Huffman coding
- Humble numbers
- Hunt the Wumpus
I
- I before E except after C
- I'm a software engineer, get me out of here
- IBAN
- ISBN13 check digit
- Idiomatically determine all the characters that can be used for symbols
- 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
- Infinity
- Inheritance/Multiple
- Inheritance/Single
- Inner classes
- Intersecting number wheels
- Introspection
- Inverted index
- Inverted syntax
- Isograms and heterograms
- Isqrt (integer square root) of X
- Iterated digits squaring
J
- JSON
- JSON pointer
- Jacobi symbol
- Jacobsthal numbers
- Jaro similarity
- Jaro-Winkler distance
- Jewels and stones
- Jordan-Pólya numbers
- JortSort
- Juggler sequence
- Julia set
K
- K-d tree
- K-means++ clustering
- Kaprekar numbers
- Kernighans large earthquake problem
- Keyboard macros
- Klarner-Rado sequence
- Knapsack problem/0-1
- Knapsack problem/Bounded
- Knapsack problem/Continuous
- Knapsack problem/Unbounded
- 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
- Last Friday of each month
- Last letter-first letter
- Latin Squares in reduced form
- Law of cosines - triples
- Left factorials
- Legendre prime counting function
- Leonardo numbers
- Levenshtein distance
- Levenshtein distance/Alignment
- Linear congruential generator
- List comprehensions
- List rooted trees
- Literals/Integer
- Logical operations
- Logistic curve fitting in epidemiology
- Long literals, with continuations
- Long primes
- Longest common subsequence
- Longest increasing subsequence
- Loops/Foreach
- Loops/Increment loop index within loop body
- Lucas-Lehmer test
- Lucky and even lucky numbers
- Ludic numbers
- Luhn test of credit card numbers
- Lychrel numbers
- Lyndon word
M
- MAC vendor lookup
- MD4
- MD5
- MD5/Implementation
- Magic constant
- Magic squares of doubly even order
- Magic squares of singly even order
- Magnanimous numbers
- Main step of GOST 28147-89
- Make directory path
- Man or boy test
- Map range
- Mastermind
- Matrix chain multiplication
- Matrix digital rain
- Matrix transposition
- Matrix-exponentiation operator
- Mayan calendar
- Mayan numerals
- Maze generation
- Maze solving
- 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
- Miller–Rabin primality test
- 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
- Modular exponentiation
- Modular inverse
- Monads/List monad
- Monads/Maybe monad
- Monads/Writer monad
- Monte Carlo methods
- Monty Hall problem
- Morse code
- Motzkin numbers
- Mouse position
- Move-to-front algorithm
- Multi-base primes
- Multi-dimensional array
- Multifactorial
- Multiple distinct objects
- Multiple regression
- Multiplicative order
- Multisplit
- Munchausen numbers
- Musical scale
- Mutex
- Mutual recursion
N
- N-smooth numbers
- Naming conventions
- Narcissist
- Narcissistic decimal number
- Natural sorting
- Nautical bell
- Negative base numbers
- Nested function
- Next highest int from digits
- Non-continuous subsequences
- Non-decimal radices/Convert
- Non-decimal radices/Input
- Non-decimal radices/Output
- Non-transitive dice
- Nonoblock
- Nonogram solver
- Nth root
- 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
- Odd word problem
- Old Russian measure of length
- One-time pad
- OpenGL
- OpenWebNet password
- Operator precedence
- Optional parameters
- Order by pair comparisons
- Order disjoint list items
- Order two numerical lists
- Ordered partitions
- Ordered words
- 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
- Paraffins
- Parallel brute force
- Parallel calculations
- Parameterized SQL statement
- Parametric polymorphism
- 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
- Pascal's triangle/Puzzle
- Pathological floating point problems
- Peaceful chess queen armies
- Peano curve
- Pell numbers
- Pell's equation
- Penta-power prime seeds
- Pentomino tiling
- Percentage difference between images
- Percolation/Bond percolation
- Percolation/Mean cluster density
- Percolation/Mean run density
- Percolation/Site percolation
- Perfect numbers
- Perfect shuffle
- Peripheral drift illusion
- Perlin noise
- Permutation test
- Permutations by swapping
- Permutations/Derangements
- Permutations/Rank of a permutation
- Pernicious numbers
- Pierpont primes
- Pig the dice game/Player
- Pinstripe/Display
- Pinstripe/Printer
- Pisano period
- Plasma effect
- Playfair cipher
- Playing cards
- Plot coordinate pairs
- Pointers and references
- Poker hand analyser
- Polymorphic copy
- Polymorphism
- Polynomial long division
- Polynomial regression
- Polyspiral
- Population count
- Power set
- Pragmatic directives
- Price fraction
- Prime conspiracy
- Prime numbers whose neighboring pairs are tetraprimes
- Prime triangle
- Primes - allocate descendants to their ancestors
- Primes: n*2^m+1
- Primorial numbers
- Priority queue
- Probabilistic choice
- Problem of Apollonius
- Product of min and max prime factors
- Proper divisors
- 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
- Pythagorean triples
Q
R
- RCRPG
- RIPEMD-160
- RPG attributes generator
- RSA code
- Radical of an integer
- Ramanujan primes/twins
- Ramanujan's constant
- Ramer-Douglas-Peucker line simplification
- Random Latin squares
- Random number generator (device)
- Random number generator (included)
- Random sentence from book
- 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
- Record sound
- Reduced row echelon form
- Reflection/Get source
- Reflection/List methods
- Reflection/List properties
- Regular expressions
- Remove lines from a file
- Rendezvous
- Rep-string
- Repunit primes
- Resistor mesh
- Respond to an unknown method call
- Retrieve and search chat history
- Return multiple values
- Rhonda numbers
- Riordan numbers
- Rock-paper-scissors
- Roots of a function
- Roots of a quadratic function
- Roots of unity
- 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
- Rosetta Code/Rank languages by popularity
- Round-robin tournament schedule
- Runge-Kutta method
- Runtime evaluation
- Runtime evaluation/In an environment
- Ruth-Aaron numbers
S
- S-expressions
- SEDOLs
- SHA-1
- SHA-256
- SHA-256 Merkle tree
- SOAP
- SQL-based authentication
- Safe addition
- Safe primes and unsafe primes
- Sailors, coconuts and a monkey problem
- Same fringe
- 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
- Self-describing numbers
- Semiprime
- Semordnilap
- Send an unknown method call
- Send email
- Sequence of non-squares
- 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
- 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
- Short-circuit evaluation
- Shortest common supersequence
- Show the epoch
- Sierpinski arrowhead curve
- Sierpinski pentagon
- Sierpinski square curve
- Sierpinski triangle
- Sierpinski triangle/Graphical
- Sieve of Pritchard
- Simple turtle graphics
- Simple windowed application
- 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
- Sokoban
- Solve a Hidato puzzle
- 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 array of composite structures
- Sort an integer array
- Sort an outline at every level
- 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/Cocktail sort
- Sorting algorithms/Cocktail sort with shifting bounds
- Sorting algorithms/Comb sort
- Sorting algorithms/Counting 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
- Sphenic numbers
- Spinning rod animation/Text
- Spiral matrix
- Split a character string based on change of character
- Square but not cube
- Square form factorization
- Square-free integers
- Stable marriage problem
- Stack traces
- Stair-climbing puzzle
- Start from a main routine
- State name puzzle
- Statistics/Normal distribution
- Steffensen's method
- Stem-and-leaf plot
- Stern-Brocot sequence
- Stirling numbers of the first kind
- Stirling numbers of the second kind
- Straddling checkerboard
- Strassen's algorithm
- Stream merge
- Strip block comments
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Strong and weak primes
- Sub-unit squares
- Subleq
- Substitution cipher
- Subtractive generator
- Successive prime differences
- Sudan function
- Sudoku
- Suffixation of decimal numbers
- Sum and product puzzle
- Sum of a series
- Sum of elements below main diagonal of matrix
- Sum of squares
- Sum to 100
- Summarize and say sequence
- Summarize primes
- Super-Poulet numbers
- Super-d numbers
- Superellipse
- Superpermutation minimisation
- Sutherland-Hodgman polygon clipping
- Sylvester's sequence
- Symmetric difference
- Sync subtitles
- Synchronous concurrency
- System time
T
- Table creation/Postal addresses
- Take notes on the command line
- Tarjan
- Tau function
- Taxicab numbers
- Teacup rim text
- Terminal control/Coloured text
- Terminal control/Unicode output
- Ternary logic
- Test a function
- Test integerness
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- Textonyms
- The Name Game
- The sieve of Sundaram
- Thiele's interpolation formula
- Thue-Morse
- Tic-tac-toe
- Time a function
- Tokenize a string with escaping
- Tonelli-Shanks algorithm
- Top rank per group
- Topic variable
- Topological sort
- Topswops
- Total circles area
- Totient function
- Towers of Hanoi
- Transliterate English text using the Greek alphabet
- Tree datastructures
- Tree from nesting levels
- Tree traversal
- Tropical algebra overloading
- Truncatable primes
- Truncate a file
- Truth table
- Tupper's self-referential formula
- Twelve statements
- Two bullet roulette
- Two's complement
U
- UPC
- URL decoding
- URL parser
- UTF-8 encode and decode
- Ukkonen’s suffix tree construction
- Ulam spiral (for primes)
- Ultra useful primes
- Unbias a random generator
- Undefined values
- Undulating numbers
- Unicode strings
- Unicode variable names
- Universal Lambda Machine
- Universal Turing machine
- Unix/ls
- Unprimeable numbers
- Untouchable numbers
- Update a configuration file
- Use another language to call a function
- User input/Graphical
V
- Validate International Securities Identification Number
- Vampire number
- Van Eck sequence
- Van der Corput sequence
- Variable declaration reset
- Variable-length quantity
- Variadic fixed-point combinator
- Vector products
- Verhoeff algorithm
- Verify distribution uniformity/Chi-squared test
- Verify distribution uniformity/Naive
- Vigenère cipher/Cryptanalysis
- Visualize a tree
- Vogel's approximation method
- Voronoi diagram
W
- Wagstaff primes
- Walk a directory/Non-recursively
- Walk a directory/Recursively
- Wasteful, equidigital and frugal numbers
- Water collected between towers
- Web scraping
- Weird numbers
- Wieferich primes
- Window creation
- Window creation/X11
- Window management
- Wireworld
- Word frequency
- Word ladder
- Word search
- Word wheel
- Word wrap
- Wordiff
- Wordle comparison
- World Cup group stage
- Worthwhile task shaving
- 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 Applesoft_BASIC
1
3
A
- A* search algorithm
- ABC words
- ASCII control characters
- Addition chains
- Addition-chain exponentiation
- Air mass
- Alternade words
- Anaprimes
- Append numbers at same position in strings
- Apéry's constant
- Arithmetic coding/As a generalized change of radix
- Aspect oriented programming
- Assertions in design by contract
- Audio alarm
- Audio frequency generator
- Audio overlap loop
- Autogram checker
B
- B-spline
- Bacon cipher
- Banker's algorithm
- Base 16 numbers needing a to f
- Base58Check encoding
- Base64 encode data
- Bilinear interpolation
- Binary coded decimal
- Binomial transform
- Bioinformatics/Subsequence
- Birthday problem
- Black box
- Blackjack strategy
- Boids
- Brace expansion using ranges
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
- 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/Simple file inclusion pre processor
- 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 the coins/0-1
- Countdown
- Cousin primes
- 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
- Dating agency
- Day of the week of Christmas and New Year
- Days between dates
- Decimal floating point number to binary
- Decision tables
- Digit fifth powers
- 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
- Engel expansion
- English cardinal anagrams
- Erdős-primes
- Erdős–Woods numbers
- Even numbers which cannot be expressed as the sum of two twin primes
- Execute CopyPasta Language
- Exponential digital sums
- 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 and last set bit of a long integer
- Find first missing positive
- Find minimum number of coins that make a given value
- Find prime n such that reversed n is also prime
- Find prime numbers of the form n*n*n+2
- Find square difference
- Find squares n where n+1 is prime
- Find words which contain the most consonants
- Find words which contains all the vowels
- Find words which contains more than 3 e vowels
- Find words whose first and last three letters are equal
- Find words with alternating vowels and consonants
- Finite state machine
- First 9 prime Fibonacci number
- Forbidden numbers
- 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
- Iccanobif primes
- Integer long division
- Integer roots
- Interactive help
- Inventory sequence
- Iterators
J
K
L
- Lagrange Interpolation
- Largest difference between adjacent primes
- Largest five adjacent number
- Largest palindrome product
- Largest product in a grid
- Latin Squares in reduced form/Randomizing using Jacobson and Matthews' technique
- Launch rocket with countdown and acceleration in stdout
- Least m such that n! + m is prime
- Length of an arc between two angles
- Line circle intersection
- Long stairs
- Longest common prefix
- Longest common suffix
- Longest palindromic substrings
- Longest substrings without repeating characters
- Lucas-Carmichael numbers
M
- Magic numbers
- Marching squares
- Markov chain text generator
- Matrix with two diagonals
- Maximum difference between adjacent elements of list
- Mersenne primes
- 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
- Nice primes
- Nimber arithmetic
- Number triplets game
- Numbers divisible by their individual digits, but not by the product of their digits.
- Numbers in base 10 that are palindromic in bases 2, 4, and 16
- Numbers in base-16 representation that cannot be written with decimal digits
- 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
- One-two primes
- OpenGL pixel shader
- OpenGL/Utah teapot
- Orbital elements
- Ormiston pairs
- Overloaded operators
P
- Palindromic primes
- Palindromic primes in base 16
- Pandigital prime
- Parse EBNF
- Parse command-line arguments
- Particle swarm optimization
- Penholodigital squares
- Penrose tiling
- Perceptron
- Permutations with repetitions
- Permutations with some identical elements
- Permuted multiples
- Piprimes
- 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 p for which the sum of primes less than or equal to p is prime
- Prime numbers which contain 123
- Prime reciprocal sum
- 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
- Primes with digits in nondecreasing order
- Print itself
- Process SMIL directives in XML data
- Product of divisors
- Proof
- Protecting Memory Secrets
- Pseudorandom number generator image
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
- 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
- Shift list elements to left by 3
- Show the (decimal) value of a number of 1s appended with a 3, then squared
- Sierpinski curve
- 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/Cycle sort
- Sorting algorithms/Tree sort on a linked list
- Special divisors
- Special factorials
- Special neighbor primes
- Special pythagorean triplet
- Spoof game
- Square root by hand
- Starting a web browser
- Statistics/Chi-squared distribution
- Strange numbers
- Strange plus numbers
- Strange unique prime triplets
- Sturmian word
- Subset sum problem
- Substring primes
- Suffix tree
- Sum data type
- Sum of divisors
- Sum of first n cubes
- 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
- Syntax highlighting using Mediawiki formatting
- Szymański's algorithm
T
- Table creation
- Tamagotchi emulator
- Terminal control/Restricted width positional input/No wrapping
- Terminal control/Restricted width positional input/With wrapping
- Text between
- Text completion
- Text to HTML
- The ISAAC cipher
- Three word location
- Time-based one-time password algorithm
- Topological sort/Extracted top item
- Transportation problem
- Triangular numbers
- Triplet of three numbers
- Two identical strings
- Two sum
- Type detection
U
- URL shortener
- Ulam numbers
- Unicode polynomial equation
- Unique characters
- Unique characters in each string
- Unit testing
- Uno (card game)
- Untrusted environment
- Use a REST API
- User defined pipe and redirection operators
- Using a speech engine to highlight words
V
W
- Walsh matrix
- 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
- Wolstenholme numbers
- Word break problem
- Words containing "the" substring
- Words from neighbour ones
X
Tasks omitted from Applesoft_BASIC
A
- Abstract type
- Add a variable to a class instance at runtime
- Associative array/Creation
- Associative array/Iteration
G
H
L
P
S
End of List
Again, feel free to try your hand at any of the tasks listed on this page.