Reports:Tasks not implemented in EchoLisp
From Rosetta Code
Awareness
If EchoLisp is a language you like, or are interested in, please inform your fellow members of the EchoLisp community; this page can't be emptied without your and their participation.
If EchoLisp is a language you like, or are interested in, please inform your fellow members of the EchoLisp community; this page can't be emptied without your and their participation.
Contents
Not implemented[edit]
These are currently not implemented in EchoLisp. Please implement some if you can. If any tasks are not possible or too complex in EchoLisp, they should not be on this list. To mark a task as such, add {{omit from|EchoLisp}}, preserving the capitalization of the language, to that task. It will appear below under the "Not Considered" section.
A
- ASCII art diagram converter
- AVL tree
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abelian sandpile model
- Abelian sandpile model/Identity
- Abstract type
- Abundant odd numbers
- Ackermann function
- Active Directory/Connect
- Active Directory/Search for a user
- Add a variable to a class instance at runtime
- Address of a variable
- Align columns
- Amb
- Angle difference between two bearings
- Angles (geometric), normalization and conversion
- Animate a pendulum
- Animation
- Anti-primes
- Append a record to the end of a text file
- Apply a digital filter (direct form II transposed)
- Approximate Equality
- Archimedean spiral
- Arena storage pool
- Arithmetic-geometric mean/Calculate Pi
- Arithmetic/Integer
- Arithmetic evaluation
- Arrays
- Associative array/Merging
- Atomic updates
- Attractive numbers
B
- Babbage problem
- Balanced ternary
- Barnsley fern
- Base64 decode data
- Bell numbers
- Benford's law
- Best shuffle
- Binary search
- Binary strings
- Bioinformatics/Sequence mutation
- Bioinformatics/base count
- Biorhythms
- Bitcoin/address validation
- Bitcoin/public point to address
- 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 a PPM file
- Bitmap/Read an image through a pipe
- Bitmap/Write a PPM file
- Bitwise IO
- Bitwise operations
- Box the compass
- Brace expansion
- Brazilian numbers
- Break OO privacy
- Brownian tree
- Bulls and cows
- Bulls and cows/Player
- Burrows–Wheeler transform
C
- CRC-32
- CUSIP
- Caesar cipher
- Calculating the value of e
- Calendar
- Calendar - for "REAL" programmers
- Call a foreign-language function
- Call a function
- Call a function in a shared library
- Call an object method
- Canny edge detector
- Canonicalize CIDR
- Cantor set
- Cartesian product of two or more lists
- Casting out nines
- Catmull–Clark subdivision surface
- Chaocipher
- Chaos game
- Character codes
- Chat server
- Check input device is a terminal
- Check output device is a terminal
- Check that file exists
- Checkpoint synchronization
- Chernick's Carmichael numbers
- Cheryl's Birthday
- Chinese zodiac
- Cholesky decomposition
- Chowla numbers
- Church Numerals
- Circles of given radius through two points
- Circular primes
- Closest-pair problem
- Color of a screen pixel
- Color quantization
- Color wheel
- Colour bars/Display
- Colour pinstripe/Display
- Colour pinstripe/Printer
- Command-line arguments
- 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
- Conditional structures
- Conjugate transpose
- Constrained genericity
- Continued fraction
- Continued fraction/Arithmetic/Construct from rational number
- Convert seconds to compound duration
- Convex hull
- Conway's Game of Life
- Copy stdin to stdout
- Count in octal
- Create a file on magnetic tape
- Create a two-dimensional array at runtime
- Create an object at a given address
- Cuban primes
- Cumulative standard deviation
- Currency
- Cut a rectangle
- Cyclotomic Polynomial
D
- DNS query
- Damm algorithm
- Date format
- Day of the week
- De Bruijn sequences
- Deal cards for FreeCell
- Death Star
- Deconvolution/1D
- Deconvolution/2D+
- Deepcopy
- Delegates
- Delete a file
- Deming's Funnel
- Department Numbers
- Detect division by zero
- 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
- Dice game probabilities
- Digital root
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Discordian date
- Display an outline as a nested table
- Distributed programming
- Diversity prediction theorem
- Documentation
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Traversal
- Dragon curve
- Draw a clock
- Draw a cuboid
- Draw a pixel
- Draw a rotating cube
- Draw a sphere
- Dutch national flag problem
- Dynamic variable names
E
- EKG sequence convergence
- Eban numbers
- Echo server
- Eertree
- Egyptian division
- Egyptian fractions
- Element-wise operations
- Elementary cellular automaton/Infinite length
- Elementary cellular automaton/Random Number Generator
- Emirp primes
- Empty directory
- Empty string
- Enforced immutability
- Entropy/Narcissist
- Enumerations
- Environment variables
- Equilibrium index
- Ethiopian multiplication
- Euler's identity
- Euler method
- Evaluate binomial coefficients
- Even or odd
- Events
- Exceptions
- Executable library
- Execute Brain****
- Execute HQ9+
- Execute SNUSP
- Execute a system command
- Extreme floating point values
F
- FASTA format
- FTP
- Faces from a mesh
- Factorial base numbers indexing permutations of a collection
- Factorions
- Fairshare between two and more
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fermat numbers
- Fibonacci word/fractal
- File extension is in extensions list
- File input/output
- File modification time
- File size
- File size distribution
- Find common directory path
- Find duplicate files
- 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
- Find the last Sunday of each month
- 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
- Five weekends
- Fivenum
- Fixed length records
- FizzBuzz
- Flipping bits game
- Flow-control structures
- Floyd's triangle
- Forest fire
- Fork
- Formatted numeric output
- Four bit adder
- Four is magic
- Four is the number of letters in the ...
- Fractal tree
- Fraction reduction
- Fractran
- Function frequency
- Function prototype
- Functional coverage tree
- Fusc sequence
G
- GUI/Maximum window dimensions
- GUI component interaction
- GUI enabling/disabling of controls
- Galton box animation
- Gamma function
- Gapful numbers
- Gauss-Jordan matrix inversion
- Gaussian elimination
- General FizzBuzz
- Generate random chess position
- Get system command output
- Globally replace text in several files
- Go Fish
- Graph colouring
- Gray code
- Grayscale image
- Greatest common divisor
- Greyscale bars/Display
- Guess the number
- Guess the number/With feedback (player)
H
- HTTPS/Authenticated
- HTTPS/Client-authenticated
- Hamming numbers
- Handle a signal
- Happy numbers
- Haversine formula
- Hello world/Standard error
- Hello world/Web server
- Hickerson series of almost integers
- Higher-order functions
- Hilbert curve
- Holidays related to Easter
- Honeycombs
- Horizontal sundial calculations
- Host introspection
- Hostname
- Hough transform
- Huffman coding
- Humble numbers
- Hunt The Wumpus
I
- IBAN
- ISBN13 check digit
- I before E except after C
- Identity matrix
- 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
- Include a file
- Increasing gaps between consecutive Niven numbers
- Index finite lists of positive integers
- Infinity
- Inheritance/Multiple
- Inheritance/Single
- Input loop
- Integer comparison
- Integer overflow
- Intersecting Number Wheels
- Isqrt (integer square root) of X
- Iterated digits squaring
J
K
- K-d tree
- K-means++ clustering
- Kaprekar numbers
- Kernighans large earthquake problem
- Keyboard input/Flush the keyboard buffer
- Keyboard input/Keypress check
- Keyboard input/Obtain a Y or N response
- Knuth's algorithm S
- Koch curve
- Kolakoski sequence
- Kosaraju
- Kronecker product
- Kronecker product based fractals
L
- LZW compression
- 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
- Leap year
- Leonardo numbers
- Levenshtein distance/Alignment
- Linear congruential generator
- List rooted trees
- Literals/Floating point
- Literals/Integer
- Literals/String
- Logical operations
- Long literals, with continuations
- Long primes
- Long year?
- Longest Common Substring
- Longest common subsequence
- Longest increasing subsequence
- Longest string challenge
- Loops/Break
- Loops/Continue
- Loops/Do-while
- Loops/For
- Loops/Increment loop index within loop body
- Loops/Infinite
- Loops/Wrong ranges
- Loops/with multiple ranges
- Lucky and even lucky numbers
- Ludic numbers
- Lychrel numbers
M
- MAC Vendor Lookup
- MD4
- MD5
- MD5/Implementation
- Machine code
- Mad Libs
- Magic 8-Ball
- Magic squares of doubly even order
- Magic squares of singly even order
- Main step of GOST 28147-89
- Make directory path
- Mastermind
- Matrix-exponentiation operator
- Matrix Digital Rain
- Matrix chain multiplication
- Matrix multiplication
- Maximum triangle path sum
- Mayan numerals
- Maze generation
- Maze solving
- McNuggets Problem
- Median filter
- Memory allocation
- Memory layout of a data structure
- Menu
- Mertens function
- Metallic ratios
- Metaprogramming
- Mian-Chowla sequence
- Middle three digits
- Mind boggling card trick
- Minesweeper game
- Minimal steps down to 1
- Modular arithmetic
- Monte Carlo methods
- Monty Hall problem
- Move-to-front algorithm
- Multifactorial
- Multiple regression
- Multisplit
- Munchausen numbers
- Mutex
- Mutual recursion
N
- N'th
- N-smooth numbers
- Named parameters
- Naming conventions
- Narcissist
- Narcissistic decimal number
- Natural sorting
- Nautical bell
- Negative base numbers
- Nested function
- Nested templated data
- Next highest int from digits
- Nim Game
- Non-continuous subsequences
- Non-decimal radices/Convert
- Non-decimal radices/Input
- Non-decimal radices/Output
- Non-transitive dice
- Nonogram solver
- Nth root
- Number names
- Number reversal game
- Numeric error propagation
- Numerical and alphabetical suffixes
- Numerical integration
- Numerical integration/Gauss-Legendre Quadrature
O
P
- P-value correction
- Palindrome dates
- Palindromic gapful numbers
- Pangram checker
- Paraffins
- Parallel Brute Force
- Parallel calculations
- Parametric polymorphism
- Parametrized SQL statement
- Parse an IP Address
- Partial function application
- Partition an integer X into N primes
- Pascal's triangle
- Pascal's triangle/Puzzle
- Pascal matrix generation
- Password generator
- Pathological floating point problems
- Peaceful chess queen armies
- Peano curve
- Pell's equation
- Penney's game
- Pentagram
- Percentage difference between images
- Percolation/Bond percolation
- Percolation/Site percolation
- Perfect numbers
- Perfect totient numbers
- Perlin noise
- Permutation test
- Permutations
- Permutations/Rank of a permutation
- Pi
- Pierpont primes
- Pig the dice game
- Pig the dice game/Player
- Pinstripe/Display
- Pinstripe/Printer
- Plasma effect
- Play recorded sounds
- Playfair cipher
- Playing cards
- Poker hand analyser
- Polynomial long division
- Polynomial regression
- Polyspiral
- Population count
- Pragmatic directives
- Price fraction
- Primality by Wilson's theorem
- Primes - allocate descendants to their ancestors
- Primorial numbers
- Probabilistic choice
- Problem of Apollonius
- Program termination
- Pseudo-random numbers/Combined recursive generator MRG32k3a
- Pseudo-random numbers/PCG32
- Pseudo-random numbers/Xorshift star
- Pythagoras tree
- Pythagorean quadruples
- Pythagorean triples
R
- RCRPG
- RIPEMD-160
- RPG Attributes Generator
- RSA code
- Ramanujan's constant
- Ramer-Douglas-Peucker line simplification
- Random numbers
- Range consolidation
- Ranking methods
- Rare numbers
- Rate counter
- Ray-casting algorithm
- Read a file character by character/UTF8
- Read a file line by line
- Read a specific line from a file
- Read entire 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 duplicate elements
- Remove lines from a file
- Rename a file
- Rendezvous
- Repeat a string
- Resistor mesh
- Respond to an unknown method call
- Retrieve and search chat history
- Rock-paper-scissors
- Roman numerals/Decode
- Roman numerals/Encode
- 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 popularity
- Rot-13
- Run-length encoding
- Runge-Kutta method
S
- SEDOLs
- SHA-1
- SHA-256
- SOAP
- SQL-based authentication
- Safe addition
- Safe primes and unsafe primes
- Sailors, coconuts and a monkey problem
- Same Fringe
- Scope/Function names and labels
- Scope modifiers
- Search a list
- Secure temporary file
- Self-describing numbers
- Self numbers
- Send an unknown method call
- Send email
- 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
- Seven-sided dice from five-sided dice
- Sexy primes
- Shell one-liner
- Shoelace formula for polygonal area
- Short-circuit evaluation
- Shortest common supersequence
- Show Ascii table
- Show the epoch
- Sierpinski carpet
- Sierpinski pentagon
- Sierpinski triangle
- Sierpinski triangle/Graphical
- Simple database
- Simulate input/Keyboard
- Simulate input/Mouse
- Singleton
- Singly-linked list/Element definition
- Sleep
- Smarandache prime-digital sequence
- Smith numbers
- 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 integer array
- 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/Insertion sort
- Sorting algorithms/Merge sort
- Sorting algorithms/Pancake sort
- Sorting algorithms/Patience sort
- Sorting algorithms/Radix sort
- Sorting algorithms/Shell sort
- Sorting algorithms/Sleep sort
- Sorting algorithms/Stooge sort
- Sorting algorithms/Strand sort
- Soundex
- Sparkline in unicode
- Special characters
- Special variables
- Speech synthesis
- Spelling of ordinal numbers
- Spinning rod animation/Text
- Spiral matrix
- Split a character string based on change of character
- Square-free integers
- Square but not cube
- Stack traces
- Start from a main routine
- State name puzzle
- Statistics/Basic
- Statistics/Normal distribution
- Stem-and-leaf plot
- Stirling numbers of the first kind
- Stirling numbers of the second kind
- Straddling checkerboard
- Stream Merge
- String comparison
- String concatenation
- String length
- Strip block comments
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strong and weak primes
- Subleq
- Substitution Cipher
- Substring
- Substring/Top and tail
- Subtractive generator
- Successive prime differences
- Sudoku
- Suffixation of decimal numbers
- Sum and Product Puzzle
- Sum and product of an array
- Sum digits of an integer
- Sum of squares
- Sum to 100
- Sunflower fractal
- Super-d numbers
- Superpermutation minimisation
- Sutherland-Hodgman polygon clipping
- Symmetric difference
- System time
T
- Take notes on the command line
- Tarjan
- Teacup rim text
- Temperature conversion
- Terminal control/Clear the screen
- Terminal control/Coloured text
- Terminal control/Cursor movement
- Terminal control/Cursor positioning
- Terminal control/Dimensions
- Terminal control/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
- Ternary logic
- Test integerness
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- Textonyms
- The ISAAC Cipher
- The Name Game
- The Twelve Days of Christmas
- Thiele's interpolation formula
- Thue-Morse
- Tic-tac-toe
- Time a function
- Tokenize a string
- Tokenize a string with escaping
- Topic variable
- Topswops
- Totient function
- Towers of Hanoi
- Tree datastructures
- Tree traversal
- Trigonometric functions
- Truncate a file
- Truth table
- Twelve statements
U
V
- Validate International Securities Identification Number
- Vampire number
- Van Eck sequence
- Van der Corput sequence
- Variable-length quantity
- Variable size/Get
- Variable size/Set
- Variables
- Variadic function
- Vector
- Verify distribution uniformity/Chi-squared test
- Verify distribution uniformity/Naive
- Video display modes
- Vigenère cipher
- Vigenère cipher/Cryptanalysis
- Visualize a tree
- Vogel's approximation method
- Voronoi diagram
W
- Walk a directory/Non-recursively
- Walk a directory/Recursively
- Water collected between towers
- Web scraping
- Weird numbers
- Window creation
- Window creation/X11
- Window management
- Wireworld
- Word frequency
- Word search
- Word wrap
- World Cup group stage
- Write entire file
- Write float arrays to a text file
- Write language name in 3D ASCII
- Write to Windows event log
Draft tasks without implementation[edit]
These tasks are drafts, meaning they largely need more work to turn them into full tasks. Perhaps you can help by trying to implement them in EchoLisp (after all, one of the key requirements for a task being non-draft is multiple implementations, preferably in widely different languages) but be aware that this may be difficult because of lack of definition of the task itself.
A
B
C
- CLI-based maze-game
- Card shuffles
- Chebyshev coefficients
- Checksumcolor
- Chemical Calculator
- Chess player
- Code segment unload
- Combinations with repetitions/Square Digit Chain
- Compiler/Verifying Syntax
- Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)
- Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)
- Create DWM statusbar
- Create an object/Native demonstration
- Curve that touches three points
- Cycle detection
D
E
F
G
H
I
L
- Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique
- Launch rocket with countdown and acceleration in stdout
- Length of an arc between two angles
- Line circle intersection
- Linux CPU utilization
- Logistic Curve Fitting in Epidemiology
- Longest common suffix
- Longest palindromic substrings
M
- Magnanimous numbers
- Make a backup file
- Markov chain text generator
- Mayan calendar
- Mersenne primes
- Minimum positive multiple in base 10 using only 0 and 1
- Modulinos
- Montgomery reduction
- Morpion solitaire
- Most frequent k chars distance
- Multidimensional Newton-Raphson method
- Multiline shebang
- Musical scale
- Möbius function
N
P
- Parse EBNF
- Parse command-line arguments
- Particle Swarm Optimization
- Penrose tiling
- Pentomino tiling
- Perceptron
- Permutations with some identical elements
- Pisano period
- Polynomial synthetic division
- Powerful numbers
- Print debugging statement
- Print itself
- Process SMIL directives in XML data
- Proof
- Pseudo-random numbers/Splitmix64
- Pseudorandom Number Generator Image
R
- Ramsey's theorem
- Random Latin Squares
- Raster bars
- Readline interface
- Recursive descent parser generator
- 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
- Robots
- Rosetta Code/List authors of task descriptions
- Rosetta Code/Rank languages by number of users
- Rosetta Code/Run examples
- Rosetta Code/Tasks without examples
- Run as a daemon or service
S
- Safe mode
- Sattolo cycle
- Selective File Copy
- Self-hosting compiler
- Sierpinski arrowhead curve
- Sierpinski curve
- Sierpinski square curve
- Sine wave
- Singly-linked list/Element removal
- Snake
- Snake And Ladder
- Solve a Rubik's Cube
- Solve triangle solitare puzzle
- Solving coin problems
- Sort an outline at every level
- Sorting algorithms/Cycle sort
- Sorting algorithms/Tree sort on a linked list
- Spoof game
- Square Root by Hand
- Strassen's algorithm
- Suffix tree
- Sum data type
T
- Table creation
- Terminal control/Restricted width positional input/No wrapping
- Terminal control/Restricted width positional input/With wrapping
- Tetris
- Text Completion
- Text between
- Text to HTML
- Three word location
- Time-based One-time Password Algorithm
- Topological sort/Extracted top item
- Transportation problem
- Twin Prime Conjecture
- Two Sum
- Type detection
U
W
Requiring Attention[edit]
Examples[edit]
These tasks have implementations in EchoLisp, but somebody, somewhere, decided that the example implementation was faulty or in some other way requiring attention. If you're familiar with the task and language, please consider reviewing/correcting the example and removing the notice.
Other pages[edit]
These are other pages related to EchoLisp which require attention; with your knowledge and assistance, we can improve the quality of the site's content.
No pages found.
Not Considered[edit]
These tasks are not generally counted toward "unimplemented", as somebody, somewhere, decided that EchoLisp was inappropriate for these tasks, or implementations of them would be unenlightening. Feel free to try your hand at them anyway.
No pages found.
End of List[edit]
Again, feel free to try your hand at any of the tasks listed on this page.
