Tasks not implemented in EasyLang
Awareness
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If EasyLang is a language you like, or are interested in, please inform your fellow members of the EasyLang community; this page can't be emptied without your and their participation.
Tasks not implemented in EasyLang
1
2
9
A
- ABC words
- ADFGVX cipher
- AKS test for primes
- ASCII art diagram converter
- AVL tree
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abstract type
- Accumulator factory
- 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
- Almkvist-Giullera formula for pi
- Amb
- Anadromes
- Anagram generator
- Anagrams
- Anagrams/Deranged anagrams
- Anonymous recursion
- Apply a callback to an array
- Apply a digital filter (direct form II transposed)
- Arbitrary-precision integers (included)
- Arena storage pool
- Arithmetic/Rational
- Assertions
- Atomic updates
- Autogram checker
B
- Babylonian spiral
- Balanced ternary
- Base64 decode data
- Bernoulli numbers
- Bernstein basis polynomials
- Binary strings
- Bioinformatics/Global alignment
- Bitcoin/address validation
- Bitcoin/public point to address
- Bitmap
- Bitmap/Bézier curves/Cubic
- Bitmap/Flood fill
- Bitmap/Histogram
- Bitmap/Midpoint circle algorithm
- Bitmap/PPM conversion through a pipe
- Bitmap/Read a PPM file
- Bitmap/Read an image through a pipe
- Bitmap/Write a PPM file
- Bitwise IO
- Boyer-Moore string search
- Break OO privacy
- Bulls and cows/Player
- Bézier curves/Intersections
C
- Calendar - for "REAL" programmers
- Call a foreign-language function
- Call an object method
- Canny edge detector
- Catamorphism
- Catmull–Clark subdivision surface
- Chat server
- Check Machin-like formulas
- Check input device is a terminal
- Check output device is a terminal
- Checkpoint synchronization
- Chernick's Carmichael numbers
- Cholesky decomposition
- Church numerals
- Classes
- Closures/Value capture
- Color quantization
- Colour pinstripe/Printer
- Commatizing numbers
- Compare sorting algorithms' performance
- Compile-time calculation
- Compiler/AST interpreter
- Compiler/code generator
- Compiler/lexical analyzer
- Compiler/syntax analyzer
- Compiler/virtual machine interpreter
- Compound data type
- Concurrent computing
- Conjugate transpose
- Constrained genericity
- 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
- Copy stdin to stdout
- Create a file on magnetic tape
- Create an object at a given address
- Currency
- Currying
- Cycles of a permutation
- Cyclotomic polynomial
D
- DNS query
- Date manipulation
- Dating agency
- Death Star
- Deconvolution/2D+
- Define a primitive data type
- Delegates
- Determine if only one instance is running
- Dining philosophers
- Display an outline as a nested table
- Distance and Bearing
- Distributed programming
- Distribution of 0 digits in factorial series
- Documentation
- Dominoes
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Traversal
- Draw a sphere
- Dynamic variable names
E
- EKG sequence convergence
- Earliest difference between prime gaps
- Echo server
- Eertree
- Element-wise operations
- Elementary cellular automaton/Infinite length
- Elementary cellular automaton/Random number generator
- Elliptic Curve Digital Signature Algorithm
- Elliptic curve arithmetic
- Empty directory
- Entropy/Narcissist
- Enumerations
- Environment variables
- Erdös-Selfridge categorization of primes
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute a Markov algorithm
- Extend your language
F
- FTP
- Faces from a mesh
- Factorial base numbers indexing permutations of a collection
- Factorions
- Faulhaber's formula
- Faulhaber's triangle
- Fermat numbers
- Fermat pseudoprimes
- Fibonacci word/fractal
- File size distribution
- Find Chess960 starting position identifier
- Find duplicate files
- Find largest left truncatable prime in a given base
- First class environments
- First-class functions
- First-class functions/Use numbers analogously
- Fixed length records
- Flatten a list
- Flipping bits game
- Fork
- Formal power series
- Formatted numeric output
- Fortunate numbers
- Four is the number of letters in the ...
- Fraction reduction
- Fractran
- French Republican calendar
- Function composition
- Function frequency
- Function prototype
- Functional coverage tree
G
- GSTrans string conversion
- GUI component interaction
- GUI enabling/disabling of controls
- GUI/Maximum window dimensions
- Gaussian primes
- Generate random chess position
- Generator/Exponential
- Generic swap
- Get system command output
- Globally replace text in several files
- Go Fish
- Gotchas
- Graph colouring
- Grayscale image
- Greedy algorithm for Egyptian fractions
H
- Handle a signal
- Hash from two arrays
- Hash join
- Hashtron inference
- Hello world/Line printer
- Hello world/Web server
- Hex dump
- Hex words
- Hickerson series of almost integers
- Higher-order functions
- History variables
- Holidays related to Easter
- Home primes
- Honeycombs
- Host introspection
- Hostname
- Hough transform
- Huffman coding
- Hunt the Wumpus
I
- I before E except after C
- I'm a software engineer, get me out of here
- Image convolution
- Imaginary base numbers
- Include a file
- Index finite lists of positive integers
- Inheritance/Multiple
- Inheritance/Single
- Inner classes
- Integer overflow
- Interactive programming (repl)
- Intersecting number wheels
- Introspection
- Inverted index
- Inverted syntax
J
- JSON
- JSON pointer
- Jacobsthal numbers
- Jaro-Winkler distance
- Jensen's Device
- Joystick position
- Juggler sequence
- Jump anywhere
K
- K-d tree
- K-means++ clustering
- Kernighans large earthquake problem
- Keyboard input/Flush the keyboard buffer
- Keyboard input/Keypress check
- Keyboard input/Obtain a Y or N response
- Keyboard macros
- Knight's tour
- Knuth's algorithm S
- Knuth's power tree
L
- LU decomposition
- LZW compression
- Latin Squares in reduced form
- Left factorials
- Legendre prime counting function
- List comprehensions
- Logistic curve fitting in epidemiology
- Long literals, with continuations
- Longest string challenge
- Loops/With multiple ranges
- Loops/Wrong ranges
- Lucky and even lucky numbers
- Lychrel numbers
M
- MD4
- Machine code
- Mad Libs
- Main step of GOST 28147-89
- Make directory path
- Man or boy test
- Matrix digital rain
- Mayan calendar
- Mayan numerals
- Median filter
- Memory allocation
- Memory layout of a data structure
- Menu
- Merge and aggregate datasets
- Metallic ratios
- Metaprogramming
- Metered concurrency
- Metronome
- Mian-Chowla sequence
- Miller–Rabin primality test
- Minimal steps down to 1
- Minimum positive multiple in base 10 using only 0 and 1
- Minkowski question-mark function
- Modified random distribution
- Modular arithmetic
- Modular exponentiation
- Monads/List monad
- Monads/Maybe monad
- Monads/Writer monad
- Multi-base primes
- Multi-dimensional array
- Multiple distinct objects
- Multiple regression
- Multiplicative order
- Mutex
N
- N-smooth numbers
- Named parameters
- Naming conventions
- Narcissist
- Natural sorting
- Nautical bell
- Nested function
- Nested templated data
- Non-decimal radices/Output
- Non-transitive dice
- Nonogram solver
- Null object
- Numbers k such that the last letter of k is the same as the first letter of k+1
- Numeric error propagation
- Numerical and alphabetical suffixes
- Numerical integration
- Numerical integration/Gauss-Legendre Quadrature
O
- OLE automation
- Object serialization
- One-time pad
- OpenGL
- Operator precedence
- Optional parameters
- Ordered partitions
- Ordered words
P
- P-Adic numbers, basic
- P-Adic square roots
- P-value correction
- Palindromic gapful numbers
- Pancake numbers
- Paraffins
- Parallel brute force
- Parallel calculations
- Parameterized SQL statement
- Parametric polymorphism
- Parse an IP Address
- Parsing/RPN to infix conversion
- Parsing/Shunting-yard algorithm
- Partial function application
- Partition function P
- Pascal's triangle/Puzzle
- Password generator
- Peaceful chess queen armies
- Pell numbers
- Pell's equation
- Penney's game
- Penta-power prime seeds
- Pentomino tiling
- Percentage difference between images
- Percolation/Bond percolation
- Percolation/Mean cluster density
- Percolation/Site percolation
- Permutation test
- Pi
- Pig the dice game/Player
- Pinstripe/Printer
- Play recorded sounds
- Playfair cipher
- Pointers and references
- Poker hand analyser
- Polymorphic copy
- Polymorphism
- Polynomial long division
- Power set
- Pragmatic directives
- Prime numbers whose neighboring pairs are tetraprimes
- Prime triangle
- Primes - allocate descendants to their ancestors
- Primorial numbers
- Priority queue
- Product of min and max prime factors
- Program termination
- Pseudo-random numbers/Combined recursive generator MRG32k3a
- Pseudo-random numbers/PCG32
- Pseudo-random numbers/Splitmix64
- Pseudo-random numbers/Xorshift star
Q
R
- RCRPG
- RIPEMD-160
- RSA code
- Ramanujan's constant
- Random number generator (device)
- Random number generator (included)
- Random sentence from book
- Ranking methods
- Ray-casting algorithm
- Read a configuration file
- Read a file character by character/UTF8
- Read a file line by line
- Read entire file
- Record sound
- Reflection/Get source
- Reflection/List methods
- Reflection/List properties
- Remove lines from a file
- Rendezvous
- Repeat
- Repunit primes
- Resistor mesh
- Respond to an unknown method call
- Retrieve and search chat history
- Rhonda numbers
- Roots of a quadratic 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
- Rosetta Code/Rank languages by popularity
- Runtime evaluation
- Runtime evaluation/In an environment
S
- S-expressions
- SHA-1
- SHA-256
- SHA-256 Merkle tree
- SOAP
- SQL-based authentication
- Safe addition
- Same fringe
- Scope modifiers
- Sealed classes and methods
- Search a list of records
- Search in paragraph's text
- Secure temporary file
- Send an unknown method call
- Send email
- Sequence of primorial primes
- Sequence: nth number with exactly n divisors
- Set
- Set consolidation
- Set of real numbers
- Shell one-liner
- Simple database
- Simulate input/Keyboard
- Simulate input/Mouse
- Singleton
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Traversal
- Singular value decomposition
- Smallest number k such that k+2^m is composite for all m less than k
- 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
- Sorensen–Dice coefficient
- Sort an array of composite structures
- Sort an outline at every level
- Sort stability
- Sort using a custom comparator
- Sorting algorithms/Bead sort
- Sorting algorithms/Cocktail sort with shifting bounds
- Sorting algorithms/Patience sort
- Sorting algorithms/Sleep sort
- Sparkline in unicode
- Special characters
- Special variables
- Speech synthesis
- Spelling of ordinal numbers
- Sphenic numbers
- Square-free integers
- Stable marriage problem
- Stack traces
- State name puzzle
- Statistics/Normal distribution
- Straddling checkerboard
- Strassen's algorithm
- Stream merge
- String interpolation (included)
- Suffixation of decimal numbers
- Sum and product puzzle
- Summarize and say sequence
- Super-Poulet numbers
- Super-d numbers
- Superpermutation minimisation
- Sutherland-Hodgman polygon clipping
- Sync subtitles
- Synchronous concurrency
T
- Table creation/Postal addresses
- Tarjan
- Teacup rim text
- 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
- Terminal control/Unicode output
- Test a function
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- Textonyms
- Thiele's interpolation formula
- Tonelli-Shanks algorithm
- Topic variable
- Topological sort
- Topswops
- Transliterate English text using the Greek alphabet
- Tree datastructures
- Tree from nesting levels
- Tropical algebra overloading
- Truncate a file
- Truth table
- Tupper's self-referential formula
- Twin primes whose sum is square number
- Two's complement
U
- URL decoding
- URL encoding
- URL parser
- UTF-8 encode and decode
- Ukkonen’s suffix tree construction
- Ultra useful primes
- Undefined values
- Unicode strings
- 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
- Variable declaration reset
- Variable size/Get
- Variable size/Set
- Variable-length quantity
- Variadic fixed-point combinator
- Variadic function
- Verhoeff algorithm
- Verify distribution uniformity/Chi-squared test
- Video display modes
- Vigenère cipher/Cryptanalysis
- Visualize a tree
- Vogel's approximation method
W
- Walk a directory/Non-recursively
- Walk a directory/Recursively
- War card game
- Wasteful, equidigital and frugal numbers
- Web scraping
- Weird numbers
- Window creation/X11
- Window management
- Word frequency
- Word search
- Word wheel
- Wordiff
- Wordle comparison
- World Cup group stage
- Worthwhile task shaving
- Write entire file
- Write float arrays to a text file
- Write language name in 3D ASCII
- Write to Windows event log
X
Y
Z
Draft tasks not implemented in EasyLang
1
3
A
- A* search algorithm
- ASCII control characters
- Addition chains
- Addition-chain exponentiation
- Alternade words
- 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
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
- 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
- Checksumcolor
- Chemical calculator
- Chess player
- Cipolla's algorithm
- Code segment unload
- Color separation
- Compiler/Preprocessor
- Compiler/Simple file inclusion pre processor
- Compiler/Verifying syntax
- Consistent overhead byte stuffing
- Continued fraction convergents
- Convert CSV records to TSV
- 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
- Curve that touches three points
- Cycle detection
D
- Data Encryption Standard
- 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–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
F
- Factor-perfect numbers
- Fibonacci heap
- Fibonacci matrix-exponentiation
- Find URI in text
- Find first and last set bit of a long integer
- 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
- Forbidden numbers
- Free polyominoes enumeration
G
- Generalised floating point addition
- Generalised floating point multiplication
- Geohash
- Geometric algebra
- Goodstein Sequence
- Gradient descent
- Greed
H
I
- IPC via named pipe
- IRC gateway
- Iccanobif primes
- Input/Output for lines of text
- Integer long division
- Interactive help
- Inventory sequence
- Iterators
J
K
L
- L-system
- Lagrange Interpolation
- 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
- Line circle intersection
- Linux CPU utilization
- Long stairs
- Lucas-Carmichael numbers
M
- Magic numbers
- Make a backup file
- Marching squares
- Markov chain text generator
- McNaughton-Yamada-Thompson algorithm
- Modulinos
- Montgomery reduction
- Morpion solitaire
- Most frequent k chars distance
- Multidimensional Newton-Raphson method
- Multiline shebang
- Multiton
N
- N-body problem
- N-grams
- N-queens minimum and knights and bishops
- NYSIIS
- Names to numbers
- Native shebang
- Nimber arithmetic
- Number triplets game
- Numeric separator syntax
- Numerical integration/Adaptive Simpson's method
O
- Odd words
- One-two primes
- OpenGL pixel shader
- OpenGL/Utah teapot
- Orbital elements
- Overloaded operators
P
- Parse EBNF
- Parse command-line arguments
- Particle swarm optimization
- Penholodigital squares
- Perceptron
- Permutations with some identical elements
- Pollard's rho algorithm
- Polynomial derivative
- Polynomial synthetic division
- Posit numbers/decoding
- Posit numbers/encoding
- Powerful numbers
- Practical numbers
- Price list behind API
- Prime reciprocal sum
- Prime words
- Print debugging statement
- Print itself
- Process SMIL directives in XML data
- Proof
- Protecting Memory Secrets
- Pseudorandom number generator image
R
- Railway circuit
- Rainbow
- 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
- Safe mode
- Sanitize user input
- Segmentation fault protection
- Selection bias in clinical sciences
- Selective file copy
- Self-hosting compiler
- Separate the house number from the street name
- 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 numbers
- Smallest power of 6 whose decimal expansion contains n
- Snake and ladder
- Solve a Rubik's cube
- Solve hanging lantern problem
- Solving coin problems
- Sorting algorithms/Tree sort on a linked list
- Special factorials
- Spoof game
- Square root by hand
- Statistics/Chi-squared distribution
- Sturmian word
- Substring primes
- Suffix tree
- Sum data type
- Sunflower fractal
- 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
- Tetris
- 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
- Triangular numbers
- Type detection
U
- URL shortener
- Unicode polynomial equation
- Unit testing
- Uno (card game)
- Untrusted environment
- Upside-down numbers
- Useless instructions
- User defined pipe and redirection operators
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
X
Tasks omitted from EasyLang
A
C
- Call a function in a shared library
- Check that file exists
- Color of a screen pixel
- Command-line arguments
- Create a file
D
E
F
H
L
M
P
R
S
T
U
W
Y
End of List
Again, feel free to try your hand at any of the tasks listed on this page.