Reports:Tasks not implemented in ZX Spectrum Basic
From Rosetta Code
Awareness
If ZX Spectrum Basic is a language you like, or are interested in, please inform your fellow members of the ZX Spectrum Basic community; this page can't be emptied without your and their participation.
If ZX Spectrum Basic is a language you like, or are interested in, please inform your fellow members of the ZX Spectrum Basic community; this page can't be emptied without your and their participation.
Contents
Not implemented[edit]
These are currently not implemented in ZX Spectrum Basic. Please implement some if you can. If any tasks are not possible or too complex in ZX Spectrum Basic, they should not be on this list. To mark a task as such, add {{omit from|ZX Spectrum Basic}}, preserving the capitalization of the language, to that task. It will appear below under the "Not Considered" section.
A
- AKS test for primes
- ASCII art diagram converter
- AVL tree
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abelian sandpile model
- Abundant odd numbers
- Accumulator factory
- Address of a variable
- Amb
- Anagrams
- Anagrams/Deranged anagrams
- Angle difference between two bearings
- Angles (geometric), normalization and conversion
- 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/Rational
- Array length
- Assertions
- Associative array/Creation
- Associative array/Iteration
- Associative array/Merging
- Atomic updates
- Attractive numbers
- Average loop length
- Averages/Arithmetic mean
- Averages/Mean angle
- Averages/Mean time of day
- Averages/Median
- Averages/Mode
- Averages/Pythagorean means
- Averages/Root mean square
- Averages/Simple moving average
B
- Babbage problem
- Balanced ternary
- Base64 decode data
- Bell numbers
- Bernoulli numbers
- Bioinformatics/Sequence mutation
- Bioinformatics/base count
- Bitcoin/address validation
- Bitcoin/public point to address
- Bitmap
- Bitmap/Bresenham's line algorithm
- Bitmap/Bézier curves/Cubic
- Bitmap/Bézier curves/Quadratic
- Bitmap/Flood fill
- Bitmap/Histogram
- Bitmap/Midpoint circle algorithm
- Bitmap/Read a PPM file
- Bitmap/Read an image through a pipe
- Bitmap/Write a PPM file
- Bitwise IO
- Bitwise operations
- Boolean values
- Brace expansion
- Brazilian numbers
- Bulls and cows/Player
C
- CRC-32
- CSV data manipulation
- CSV to HTML translation
- CUSIP
- Calendar
- Calendar - for "REAL" programmers
- Call a foreign-language function
- Call a function in a shared library
- Canny edge detector
- Cantor set
- Cartesian product of two or more lists
- Catmull–Clark subdivision surface
- Chaocipher
- Chat server
- Check Machin-like formulas
- Check that file exists
- Checkpoint synchronization
- Chernick's Carmichael numbers
- Chinese zodiac
- Chowla numbers
- Church Numerals
- Collections
- Color quantization
- Combinations
- Combinations and permutations
- Commatizing numbers
- Comments
- Compare sorting algorithms' performance
- Compiler/AST interpreter
- Compiler/code generator
- Compiler/lexical analyzer
- Compiler/syntax analyzer
- Compiler/virtual machine interpreter
- Compound data type
- Conditional structures
- Conjugate transpose
- Continued fraction/Arithmetic/Construct from rational number
- Convert decimal number to rational
- Convex hull
- Cramer's rule
- Create a two-dimensional array at runtime
- Create an HTML table
- Create an object at a given address
- Cuban primes
- Cumulative standard deviation
- Currency
- Currying
- Cut a rectangle
- Cyclotomic Polynomial
D
- Date format
- Date manipulation
- De Bruijn sequences
- Death Star
- Deconvolution/1D
- Deconvolution/2D+
- Define a primitive data type
- Delegates
- Deming's Funnel
- Department Numbers
- Detect division by zero
- Determinant and permanent
- Determine if a string has all the same characters
- Determine if a string has all unique characters
- Determine if a string is collapsible
- Determine if a string is numeric
- Determine if a string is squeezable
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dining philosophers
- Discordian date
- Distributed programming
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Traversal
- Draw a rotating cube
E
- EKG sequence convergence
- Eban numbers
- Echo server
- Eertree
- Egyptian division
- Egyptian fractions
- Element-wise operations
- Elementary cellular automaton
- Emirp primes
- Empty directory
- Entropy/Narcissist
- Euler's identity
- Events
- Evolutionary algorithm
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute HQ9+
- Execute SNUSP
- Execute a Markov algorithm
- Exponentiation order
- Extensible prime generator
- Extreme floating point values
F
- FASTA format
- FTP
- Faces from a mesh
- Factorial base numbers indexing permutations of a collection
- Factors of a Mersenne number
- Fairshare between two and more
- Farey sequence
- Fast Fourier transform
- Fermat numbers
- Fibonacci n-step number sequences
- Fibonacci word/fractal
- File extension is in extensions list
- File input/output
- File size
- Find common directory path
- Find largest left truncatable prime in a given base
- Find palindromic numbers in both binary and ternary bases
- Find the intersection of two lines
- Find the last Sunday of each month
- First-class functions
- First class environments
- First perfect square in base N with N unique digits
- First power of 2 that has leading decimal digits of 12
- Five weekends
- Fixed length records
- Flipping bits game
- Flow-control structures
- Floyd-Warshall algorithm
- Formal power series
- Four bit adder
- Four is magic
- Four is the number of letters in the ...
- Fraction reduction
- Fractran
- Function frequency
- 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
- Gaussian elimination
- Generate Chess960 starting position
- Generate random chess position
- Generator/Exponential
- Generic swap
- Get system command output
- Globally replace text in several files
- Go Fish
- Graph colouring
- Gray code
- Grayscale image
H
- Handle a signal
- Hash from two arrays
- Hash join
- Hello world/Graphical
- Hello world/Line printer
- Heronian triangles
- Hickerson series of almost integers
- Hilbert curve
- Hofstadter Figure-Figure sequences
- Holidays related to Easter
- Honeycombs
- Horner's rule for polynomial evaluation
- Host introspection
- Hough transform
- Huffman coding
- Humble numbers
- Hunt The Wumpus
I
- I before E except after C
- Idiomatically determine all the characters that can be used for symbols
- Image convolution
- Image noise
- Imaginary base numbers
- Increasing gaps between consecutive Niven numbers
- Index finite lists of positive integers
- Inheritance/Multiple
- Inheritance/Single
- Input loop
- Integer overflow
- Integer sequence
- Interactive programming
- Intersecting Number Wheels
- Inverted index
K
- K-d tree
- K-means++ clustering
- Kaprekar numbers
- Kernighans large earthquake problem
- Keyboard macros
- Knapsack problem/0-1
- Knapsack problem/Bounded
- Knapsack problem/Continuous
- Knapsack problem/Unbounded
- Knight's tour
- Knuth's algorithm S
- Knuth's power tree
- Knuth shuffle
- Koch curve
- Kolakoski sequence
- Kosaraju
- Kronecker product
- Kronecker product based fractals
L
- LU decomposition
- LZW compression
- Lah numbers
- Langton's ant
- Largest int from concatenated ints
- Largest number divisible by its digits
- Last Friday of each month
- Last letter-first letter
- Latin Squares in reduced form
- Law of cosines - triples
- Least common multiple
- Left factorials
- Leonardo numbers
- Letter frequency
- Levenshtein distance
- Linear congruential generator
- List comprehensions
- Literals/Floating point
- Literals/Integer
- Logical operations
- Long multiplication
- Long primes
- Long year?
- Longest Common Substring
- Longest common subsequence
- Longest increasing subsequence
- Longest string challenge
- Look-and-say sequence
- Loops/Continue
- Loops/Do-while
- Loops/Foreach
- Loops/Increment loop index within loop body
- Loops/Infinite
- Loops/While
- Loops/Wrong ranges
- Loops/with multiple ranges
- Lucas-Lehmer test
- 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 odd order
- Magic squares of singly even order
- Main step of GOST 28147-89
- Make directory path
- Man or boy test
- Mandelbrot set
- Map range
- Mastermind
- Matrix-exponentiation operator
- Matrix Digital Rain
- Matrix chain multiplication
- Matrix multiplication
- Matrix transposition
- Maximum triangle path sum
- Mayan numerals
- Maze generation
- Maze solving
- McNuggets Problem
- Median filter
- Menu
- Mertens function
- Metallic ratios
- Metaprogramming
- Metronome
- Mian-Chowla sequence
- Middle three digits
- Miller–Rabin primality test
- Mind boggling card trick
- Minesweeper game
- Minimal steps down to 1
- Modular exponentiation
- Modular inverse
- Monte Carlo methods
- Monty Hall problem
- Morse code
- Move-to-front algorithm
- Multi-dimensional array
- Multifactorial
- Multiple distinct objects
- Multiple regression
- Multiplication tables
- Multiplicative order
- Multisplit
- Munchausen numbers
- Munching squares
- Mutual recursion
N
- N-queens problem
- N-smooth numbers
- Naming conventions
- Narcissist
- 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
- Nonoblock
- Nonogram solver
- Nth root
- Null object
- 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
- Palindrome detection
- Palindromic gapful numbers
- Pangram checker
- Paraffins
- Parallel Brute Force
- Parametric polymorphism
- Parametrized SQL statement
- Parse an IP Address
- Parsing/RPN calculator algorithm
- Parsing/RPN to infix conversion
- Parsing/Shunting-yard algorithm
- Partial function application
- Partition an integer X into N primes
- Pascal's triangle/Puzzle
- Pascal matrix generation
- Password generator
- Pathological floating point problems
- Pattern matching
- Peaceful chess queen armies
- Peano curve
- Pell's equation
- Penney's game
- Pentagram
- 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
- Permutation test
- Permutations
- Permutations/Derangements
- Permutations/Rank of a permutation
- Permutations by swapping
- Pernicious numbers
- Phrase reversals
- Pi
- Pick random element
- Pierpont primes
- Pig the dice game
- Pig the dice game/Player
- Pinstripe/Display
- Pinstripe/Printer
- Plasma effect
- Play recorded sounds
- Plot coordinate pairs
- Poker hand analyser
- Polymorphic copy
- Polymorphism
- Polynomial long division
- Polynomial regression
- Polyspiral
- Population count
- Power set
- Price fraction
- Prime conspiracy
- Prime decomposition
- Primes - allocate descendants to their ancestors
- Primorial numbers
- Priority queue
- Probabilistic choice
- Problem of Apollonius
- Proper divisors
- Pythagoras tree
- Pythagorean quadruples
R
- RCRPG
- RIPEMD-160
- RPG Attributes Generator
- RSA code
- Ramanujan's constant
- Ramer-Douglas-Peucker line simplification
- Random number generator (device)
- Range consolidation
- Range expansion
- Range extraction
- Ranking methods
- Rare numbers
- Rate counter
- Ray-casting algorithm
- Read a configuration file
- 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
- Rendezvous
- Rep-string
- Repeat a string
- Resistor mesh
- Retrieve and search chat history
- Return multiple values
- Reverse a string
- Reverse words in a string
- Rock-paper-scissors
- Roman numerals/Decode
- Roots of a function
- Roots of a quadratic function
- Roots of unity
- Rosetta Code/Find bare lang tags
- Rosetta Code/Fix code tags
- Run-length encoding
- Runge-Kutta method
- Runtime evaluation
- Runtime evaluation/In an environment
S
- S-Expressions
- SEDOLs
- SHA-1
- SHA-256
- Safe addition
- Safe primes and unsafe primes
- Sailors, coconuts and a monkey problem
- Same Fringe
- Search a list
- Search a list of records
- Self-describing numbers
- Self-referential sequence
- Semiprime
- 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
- Sequence of non-squares
- Sequence of primes by trial division
- Sequence of primorial primes
- Set
- Set consolidation
- Set of real numbers
- Set puzzle
- Seven-sided dice from five-sided dice
- Sexy primes
- Shoelace formula for polygonal area
- Shortest common supersequence
- Sierpinski carpet
- Sierpinski pentagon
- Sierpinski triangle
- Sierpinski triangle/Graphical
- Simple database
- Simulate input/Keyboard
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Traversal
- Smarandache prime-digital sequence
- 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
- Sort a list of object identifiers
- Sort an array of composite structures
- Sort an integer array
- Sort disjoint sublist
- Sort numbers lexicographically
- Sort stability
- Sort three variables
- Sort using a custom comparator
- Sorting algorithms/Bead sort
- Sorting algorithms/Bogosort
- 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
- Spelling of ordinal numbers
- Spiral matrix
- Square-free integers
- Square but not cube
- Stable marriage problem
- Stack
- Stair-climbing puzzle
- 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
- Stream Merge
- String append
- String case
- String comparison
- String interpolation (included)
- String matching
- String prepend
- Strip a set of characters from a string
- Strip block comments
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Strong and weak primes
- 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 multiples of 3 and 5
- Sum of squares
- Sum to 100
- Sunflower fractal
- Super-d numbers
- Superellipse
- Superpermutation minimisation
- Sutherland-Hodgman polygon clipping
- Symmetric difference
T
- Table creation/Postal addresses
- Tarjan
- Terminal control/Clear the screen
- Terminal control/Dimensions
- Terminal control/Preserve screen
- Ternary logic
- Test a function
- 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
- Tonelli-Shanks algorithm
- Top rank per group
- Topological sort
- Topswops
- Total circles area
- Totient function
- Towers of Hanoi
- Trabb Pardo–Knuth algorithm
- Tree traversal
- Truncatable primes
- 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
- Variables
- Vector products
- Verify distribution uniformity/Chi-squared test
- Verify distribution uniformity/Naive
- Vigenère cipher
- Vigenère cipher/Cryptanalysis
- Visualize a tree
- Vogel's approximation method
- Voronoi diagram
W
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 ZX Spectrum Basic (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.
2
A
B
C
- Card shuffles
- Chebyshev coefficients
- Check output device is a terminal
- Checksumcolor
- Chemical Calculator
- Cheryl's Birthday
- Chess player
- Cipolla's algorithm
- Circular primes
- Color wheel
- 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)
- Copy stdin to stdout
- Create an object/Native demonstration
- Curve that touches three points
- Cycle detection
D
E
F
- Factorions
- Faulhaber's formula
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fibonacci heap
- Fibonacci matrix-exponentiation
- File size distribution
- Find URI in text
- Find duplicate files
- Find first and last set bit of a long integer
- Find the intersection of a line with a plane
- Finite state machine
- Fivenum
- Free polyominoes enumeration
- French Republican calendar
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
- Levenshtein distance/Alignment
- Line circle intersection
- Linux CPU utilization
- List rooted trees
- Logistic Curve Fitting in Epidemiology
- Long literals, with continuations
- Longest common prefix
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
- Modular arithmetic
- Monads/List monad
- Monads/Maybe monad
- Monads/Writer monad
- Montgomery reduction
- Morpion solitaire
- Most frequent k chars distance
- Multidimensional Newton-Raphson method
- Möbius function
N
P
- Parse EBNF
- Parse command-line arguments
- Particle Swarm Optimization
- Penrose tiling
- Pentomino tiling
- Perceptron
- Perlin noise
- Permutations with repetitions
- Permutations with some identical elements
- Pisano period
- Playfair cipher
- Polynomial synthetic division
- Powerful numbers
- Primalty by Wilson's theorem
- Print debugging statement
- Process SMIL directives in XML data
- Proof
R
- Railway circuit
- Ramsey's theorem
- Random Latin Squares
- Raster bars
- Read a file character by character/UTF8
- Readline interface
- Recursive descent parser generator
- Remote agent/Agent interface
- Remote agent/Agent logic
- Remote agent/Simulation
- Repeat
- 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
S
- Safe mode
- Sattolo cycle
- Selective File Copy
- Self-hosting compiler
- Separate the house number from the street name
- Sierpinski arrowhead curve
- Sierpinski curve
- Sierpinski square curve
- Simulated annealing
- Sine wave
- Singly-linked list/Element removal
- Snake And Ladder
- Solve a Rubik's Cube
- Solving coin problems
- Sorting algorithms/Cycle sort
- Sorting algorithms/Tree sort on a linked list
- Spoof game
- Starting a web browser
- Subset sum problem
- Substitution Cipher
- Suffix tree
- Sum data type
T
- Table creation
- Tamagotchi emulator
- Teacup rim text
- Terminal control/Restricted width positional input/No wrapping
- Terminal control/Restricted width positional input/With wrapping
- Tetris
- Text between
- Text to HTML
- Time-based One-time Password Algorithm
- Topological sort/Extracted top item
- Transportation problem
- Tree datastructures
- Two Sum
- Type detection
U
W
Requiring Attention[edit]
Examples[edit]
These tasks have implementations in ZX Spectrum Basic, 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 ZX Spectrum Basic 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 ZX Spectrum Basic was inappropriate for these tasks, or implementations of them would be unenlightening. Feel free to try your hand at them anyway.
A
C
D
H
R
S
End of List[edit]
Again, feel free to try your hand at any of the tasks listed on this page.
