This programming language may be used to instruct a computer to perform a task.
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Your Help Needed
If you know Action!, please write code for some of the tasks not implemented in Action!.
If you know Action!, please write code for some of the tasks not implemented in Action!.
Action! is a language written by Clinton Parker and published by Optimized Sytems Software (OSS) for the Atari 8-bit line of home computers. It is related to ALGOL and optimized for single-pass compilation to 6502 code.
See Also[edit]
Pages in category "Action!"
The following 521 pages are in this category, out of 521 total.
A
- A+B
- ABC problem
- ABC words
- Abundant, deficient and perfect number classifications
- Ackermann function
- Address of a variable
- Align columns
- Almost prime
- Amicable pairs
- Angle difference between two bearings
- Animation
- Anti-primes
- Append a record to the end of a text file
- Archimedean spiral
- Arithmetic-geometric mean
- Arithmetic/Complex
- Arithmetic/Integer
- Arithmetic/Rational
- Array concatenation
- Arrays
- Attractive numbers
- Audio frequency generator
- Averages/Arithmetic mean
- Averages/Mean time of day
- Averages/Median
- Averages/Mode
- Averages/Pythagorean means
- Averages/Root mean square
B
- Balanced brackets
- Barnsley fern
- Base 16 numbers needing a to f
- Base64 decode data
- Base64 encode data
- Best shuffle
- Bilinear interpolation
- Bin given limits
- Binary digits
- Binary search
- Bioinformatics/base count
- Bioinformatics/Subsequence
- 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/Write a PPM file
- Bitwise operations
- Boolean values
- Box the compass
- Brazilian numbers
- Brownian tree
- Bulls and cows
C
- Caesar cipher
- Calculating the value of e
- Cantor set
- Cartesian product of two or more lists
- Case-sensitivity of identifiers
- Casting out nines
- Catalan numbers
- Catalan numbers/Pascal's triangle
- Chaos game
- Character codes
- Check that file exists
- Chinese remainder theorem
- Chinese zodiac
- Circles of given radius through two points
- Cistercian numerals
- Code Golf: Code Golf
- Color of a screen pixel
- Colour bars/Display
- Colour pinstripe/Display
- Combinations
- Combinations with repetitions
- Comma quibbling
- Comments
- Common list elements
- Common sorted list
- Compare a list of strings
- Compound data type
- Concatenate two primes is also prime
- Conditional structures
- Constrained random points on a circle
- Continued fraction
- Convert seconds to compound duration
- Convex hull
- Coprime triplets
- Coprimes
- Copy a string
- Copy stdin to stdout
- Count how many vowels and consonants occur in a string
- Count in factors
- Count in octal
- Count occurrences of a substring
- Cousin primes
- Create a file
- Create a file on magnetic tape
- Create a two-dimensional array at runtime
- Create an HTML table
- Create an object at a given address
- Cubic special primes
- Cumulative standard deviation
- Curve that touches three points
- CUSIP
D
- Damm algorithm
- Date format
- Day of the week
- Days between dates
- Delete a file
- Department numbers
- 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
- Dice game probabilities
- Distinct power numbers
- Dot product
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Element removal
- Doubly-linked list/Traversal
- Dragon curve
- Draw a cuboid
- Draw a pixel
- Draw a sphere
- Dutch national flag problem
E
F
- Factorial
- Factors of an integer
- FASTA format
- Fibonacci n-step number sequences
- Fibonacci sequence
- File extension is in extensions list
- File input/output
- File size
- File size distribution
- Filter
- 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 the intersection of a line with a plane
- Find the intersection of two lines
- Find the last Sunday of each month
- Find the missing permutation
- 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
- Five weekends
- FizzBuzz
- Flipping bits game
- Floyd's triangle
- Four bit adder
- Fractal tree
- Frobenius numbers
G
- General FizzBuzz
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generate random chess position
- Generate random numbers without repeating a value
- Generic swap
- Geohash
- Getting the number of decimals
- Gray code
- Grayscale image
- Greatest common divisor
- Greatest element of a list
- Greatest subsequential sum
- Guess the number
- Guess the number/With feedback
- Guess the number/With feedback (player)
H
I
K
L
- Langton's ant
- Last Friday of each month
- Law of cosines - triples
- Leap year
- Least common multiple
- Length of an arc between two angles
- Leonardo numbers
- Letter frequency
- Levenshtein distance
- Logical operations
- Long year
- Longest common prefix
- Longest common substring
- Longest common suffix
- Longest palindromic substrings
- Longest substrings without repeating characters
- Look-and-say sequence
- Loop over multiple arrays simultaneously
- Loops/Break
- Loops/Do-while
- Loops/For
- Loops/For with a specified step
- Loops/Foreach
- Loops/Infinite
- Loops/N plus one half
- Loops/Nested
- Loops/While
- Ludic numbers
- Luhn test of credit card numbers
M
- Machine code
- Magic 8-ball
- Map range
- Mastermind
- Matrix multiplication
- Matrix transposition
- Maximum difference between adjacent elements of list
- Maximum triangle path sum
- Maze generation
- Maze solving
- McNuggets problem
- Median filter
- Memory allocation
- Menu
- Mertens function
- Middle three digits
- Modular inverse
- Monte Carlo methods
- Morse code
- Move-to-front algorithm
- Multifactorial
- Multiple distinct objects
- Multiplication tables
- Munchausen numbers
- Munching squares
- Musical scale
N
- N'th
- Negative base numbers
- Next special primes
- Nice primes
- Nim game
- Non-decimal radices/Convert
- Non-decimal radices/Output
- Nonoblock
- Nth root
- Null object
- Number reversal 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 which binary and ternary digit sum are prime
- Numbers whose count of divisors is prime
- Numbers with prime digits whose sum is 13
O
P
- Palindrome dates
- Palindrome detection
- Palindromic primes
- Palindromic primes in base 16
- Pangram checker
- Parsing/RPN calculator algorithm
- Pascal matrix generation
- Pascal's triangle
- Password generator
- Peano curve
- Pentagram
- Perfect numbers
- Perfect shuffle
- Peripheral drift illusion
- Permutations
- Phrase reversals
- Pick random element
- Pinstripe/Display
- Piprimes
- Playing cards
- Plot coordinate pairs
- Polyspiral
- Positive decimal integers with the digit 1 occurring exactly twice
- Price fraction
- Primality by trial division
- 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
- Priority queue
- Product of divisors
- Program termination
- Proper divisors
- Pythagorean triples
R
- Random Latin squares
- Range consolidation
- Range expansion
- Range extraction
- Range modifications
- Rate counter
- 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
- Remove duplicate elements
- Remove vowels from a string
- Rename a file
- Rep-string
- Repeat
- Repeat a string
- Return multiple values
- Reverse a string
- Reverse the gender of a string
- Reverse the order of lines in a text file while preserving the contents of each line
- Reverse words in a string
- Roman numerals/Decode
- Roman numerals/Encode
- RPG attributes generator
- Run-length encoding
- Runge-Kutta method
S
- Sattolo cycle
- Search a list
- Search a list of records
- SEDOLs
- Semiprime
- Sequence of primes by trial division
- Sequence: smallest number greater than previous term with exactly n divisors
- Sequence: smallest number with exactly n divisors
- Set
- Shift list elements to left by 3
- Shoelace formula for polygonal area
- Short-circuit evaluation
- Show ASCII table
- Sierpinski carpet
- Sierpinski curve
- Sierpinski pentagon
- Sierpinski triangle
- Sierpinski triangle/Graphical
- Sieve of Eratosthenes
- Simple turtle graphics
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Element removal
- Singly-linked list/Traversal
- Sleep
- Smallest square that begins with n
- Smarandache prime-digital sequence
- Smith numbers
- Sort a list of object identifiers
- Sort an array of composite structures
- Sort an integer array
- Sort disjoint sublist
- Sort numbers lexicographically
- Sort the letters of string in alphabetical order
- Sort using a custom comparator
- Sorting algorithms/Bogosort
- Sorting algorithms/Bubble sort
- 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/Cycle sort
- Sorting algorithms/Gnome sort
- Sorting algorithms/Insertion sort
- Sorting algorithms/Merge sort
- Sorting algorithms/Pancake sort
- Sorting algorithms/Quicksort
- Sorting algorithms/Selection sort
- Sorting algorithms/Shell sort
- Sorting algorithms/Stooge sort
- Special divisors
- Special neighbor primes
- Spinning rod animation/Text
- Spiral matrix
- Split a character string based on change of character
- Square but not cube
- Stack
- Statistics/Basic
- Stem-and-leaf plot
- Stern-Brocot sequence
- Strange numbers
- Strange plus numbers
- Strange unique prime triplets
- String append
- String case
- String comparison
- String concatenation
- String interpolation (included)
- String length
- String matching
- String prepend
- Strip a set of characters from a string
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Subset sum problem
- Substring
- Substring primes
- Substring/Top and tail
- Sum and product of an array
- Sum digits of an integer
- Sum multiples of 3 and 5
- Sum of a series
- Sum of divisors
- Sum of elements below main diagonal of matrix
- Sum of first n cubes
- Sum of primes in odd positions is prime
- Sum of squares
- Sum of the digits of n is substring of n
- Sunflower fractal
- Superellipse
- Symmetric difference
T
- Tau function
- Tau number
- Temperature conversion
- Terminal control/Clear the screen
- 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
- Ternary logic
- Text between
- The Twelve Days of Christmas
- Thue-Morse
- Time a function
- Tokenize a string
- Tokenize a string with escaping
- Top rank per group
- Tree traversal
- Triplet of three numbers
- Truncate a file
- Two identical strings
- Two sum
