Powershell

Powershell is a programming language.

Tasks

• 100 doors
• 24 game
• A* search algorithm
• A+B
• ABC Problem
• Abstract type
• Abundant, deficient and perfect number classifications
• Accumulator factory
• Ackermann function
• Add a variable to a class instance at runtime
• Align columns
• Aliquot sequence classifications
• Amicable pairs
• Anagrams
• Anagrams/Deranged anagrams
• Append a record to the end of a text file
• Apply a callback to an array
• Arbitrary-precision integers (included)
• Arithmetic-geometric mean
• Arithmetic/Complex
• Arithmetic/Integer
• Array concatenation
• Array length
• Arrays
• Associative array/Creation
• Associative array/Iteration
• 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
• Babbage problem
• Balanced brackets
• Base64 encode data
• Benford's law
• Best shuffle
• Binary digits
• Binary search
• Binary strings
• Bitwise operations
• Boolean values
• Box the compass
• Brace expansion
• Bulls and cows
• CSV data manipulation
• CSV to HTML translation
• Caesar cipher
• Calculating the value of e
• Calendar
• Call an object method
• Case-sensitivity of identifiers
• Catalan numbers
• Catamorphism
• Character codes
• Check that file exists
• Cholesky decomposition
• Classes
• Closures/Value capture
• Collections
• Colour bars/Display
• Combinations
• Comma quibbling
• Command-line arguments
• Comments
• Compare a list of strings
• Compile-time calculation
• Compound data type
• Concurrent computing
• Conditional structures
• Conjugate transpose
• Constrained random points on a circle
• Convert seconds to compound duration
• Copy a string
• Count in factors
• Count in octal
• Count occurrences of a substring
• Create a file
• Create a two-dimensional array at runtime
• Create an HTML table
• Cumulative standard deviation
• Currying
• DNS query
• Date format
• Date manipulation
• Day of the week
• Define a primitive data type
• Delete a file
• Detect division by zero
• Determinant and permanent
• Determine if a string is numeric
• Determine if only one instance is running
• Digital root
• Dinesman's multiple-dwelling problem
• Discordian date
• Documentation
• Dot product
• Doubly-linked list/Definition
• Dutch national flag problem
• Dynamic variable names
• Empty directory
• Empty program
• Empty string
• Entropy
• Enumerations
• Environment variables
• Equilibrium index
• Ethiopian multiplication
• Euler method
• Euler's sum of powers conjecture
• Evaluate binomial coefficients
• Even or odd
• Events
• Exceptions
• Execute HQ9+
• Execute a system command
• Exponentiation operator
• Extend your language
• Extract file extension
• FASTA format
• Factorial
• Factors of an integer
• Fibonacci n-step number sequences
• Fibonacci sequence
• Filter
• Find common directory path
• Find limit of recursion
• Find the last Sunday of each month
• Find the missing permutation
• Five weekends
• FizzBuzz
• Flatten a list
• Formatted numeric output
• Forward difference
• Four bit adder
• Function composition
• Function definition
• Gamma function
• Gauss-Jordan matrix inversion
• Gaussian elimination
• General FizzBuzz
• Generate Chess960 starting position
• Generate lower case ASCII alphabet
• Generic swap
• Get system command output
• Globally replace text in several files
• Greatest common divisor
• Greatest element of a list
• Guess the number
• Guess the number/With feedback
• HTTP
• HTTPS
• Handle a signal
• Happy numbers
• Harshad or Niven series
• Hash from two arrays
• Haversine formula
• Hello world!
• Hello world/Graphical
• Hello world/Newbie
• Hello world/Newline omission
• Hello world/Standard error
• Hello world/Text
• Here document
• Heronian triangles
• Higher-order functions
• Holidays related to Easter
• Horizontal sundial calculations
• Horner's rule for polynomial evaluation
• Host introspection
• Hostname
• Huffman coding
• I before E except after C
• IBAN
• Identity matrix
• Include a file
• Increment a numerical string
• Infinity
• Inheritance/Multiple
• Inheritance/Single
• Input loop
• Input/Output for Lines of Text
• Input/Output for Pairs of Numbers
• Integer comparison
• Integer sequence
• Interactive programming
• Introspection
• Inverted index
• Inverted syntax
• JSON
• JortSort
• Josephus problem
• Jump anywhere
• Kaprekar numbers
• Keyboard input/Flush the keyboard buffer
• Keyboard input/Keypress check
• Keyboard input/Obtain a Y or N response
• Knapsack problem/Unbounded
• Knuth shuffle
• Langton's ant
• Largest int from concatenated ints
• Last Friday of each month
• Leap year
• Least common multiple
• Left factorials
• Letter frequency
• Levenshtein distance
• Linear congruential generator
• Literals/Integer
• Literals/String
• Logical operations
• Long multiplication
• Longest common prefix
• Longest common subsequence
• Longest increasing subsequence
• Longest string challenge
• Look-and-say sequence
• Loop over multiple arrays simultaneously
• Loops/Break
• Loops/Continue
• Loops/Do-while
• Loops/Downward for
• Loops/For
• Loops/For with a specified step
• Loops/Foreach
• Loops/Infinite
• Loops/N plus one half
• Loops/While
• Lucas-Lehmer test
• Ludic numbers
• Luhn test of credit card numbers
• Lychrel numbers
• MD5
• Mad Libs
• Make directory path
• Mandelbrot set
• Map range
• Matrix multiplication
• Matrix transposition
• McNuggets Problem
• Menu
• Middle three digits
• Modular inverse
• Monte Carlo methods
• Monty Hall problem
• Morse code
• Move-to-front algorithm
• Multiple distinct objects
• Multiplication tables
• Multisplit
• Musical scale
• Mutual recursion
• N'th
• N-queens problem
• Named parameters
• Naming conventions
• Narcissist
• Narcissistic decimal number
• Natural sorting
• Nautical bell
• Non-continuous subsequences
• Non-decimal radices/Input
• Non-decimal radices/Output
• Nth root
• Null object
• Number names
• Number reversal game
• Old lady swallowed a fly
• One of n lines in a file
• Order disjoint list items
• Order two numerical lists
• Ordered words
• Palindrome detection
• Pangram checker
• Parse an IP Address
• Parse command-line arguments
• Parsing/RPN calculator algorithm
• Pascal's triangle
• Password generator
• Perfect numbers
• Permutations
• Permutations by swapping
• Pernicious numbers
• Phrase reversals
• Pi
• Pick random element
• Polynomial regression
• Population count
• Power set
• Pragmatic directives
• Price fraction
• Primality by trial division
• Prime decomposition
• Probabilistic choice
• Problem of Apollonius
• Program name
• Program termination
• Proper divisors
• Pythagorean triples
• QR decomposition
• Quaternion type
• Queue/Definition
• Queue/Usage
• Quickselect algorithm
• Quine
• RIPEMD-160
• RSA code
• Random number generator (device)
• Random number generator (included)
• Random numbers
• Range expansion
• Range extraction
• Ranking methods
• Rate counter
• Read a configuration file
• Read a file line by line
• Read a specific line from a file
• Read entire file
• Real constants and functions
• Reflection/List properties
• Regular expressions
• Remove duplicate elements
• Remove lines from a file
• Rename a file
• Repeat
• Repeat a string
• Return multiple values
• Reverse a string
• Reverse the gender of a string
• Reverse words in a string
• Roman numerals/Decode
• Roman numerals/Encode
• Rosetta Code/Find unimplemented tasks
• Rot-13
• Run-length encoding
• Runge-Kutta method
• Runtime evaluation
• SEDOLs
• SHA-1
• SHA-256
• Scope modifiers
• Scope/Function names and labels
• Search a list
• Search a list of records
• Secure temporary file
• Self-describing numbers
• Semiprime
• Semordnilap
• Send an unknown method call
• Send email
• Sequence of primes by trial division
• Set
• Shell one-liner
• Short-circuit evaluation
• Show the epoch
• Sierpinski carpet
• Sierpinski triangle
• Sieve of Eratosthenes
• Simple database
• Simple windowed application
• Simulate input/Keyboard
• Sleep
• Sort an array of composite structures
• Sort an integer array
• Sort disjoint sublist
• Sort using a custom comparator
• Sorting algorithms/Bead sort
• Sorting algorithms/Bogosort
• Sorting algorithms/Bubble sort
• Sorting algorithms/Cocktail sort
• 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/Permutation sort
• Sorting algorithms/Quicksort
• Sorting algorithms/Selection sort
• Sorting algorithms/Shell sort
• Sorting algorithms/Stooge sort
• Soundex
• Special characters
• Special variables
• Speech synthesis
• Spiral matrix
• Split a character string based on change of character
• Stack
• Stair-climbing puzzle
• Stem-and-leaf plot
• Stern-Brocot sequence
• 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 control codes and extended characters from a string
• Strip whitespace from a string/Top and tail
• Subleq
• Substring
• Substring/Top and tail
• Subtractive generator
• Sum and product of an array
• Sum digits of an integer
• Sum multiples of 3 and 5
• Sum of a series
• Sum of squares
• Symmetric difference
• System time
• Take notes on the command line
• Temperature conversion
• Terminal control/Clear the screen
• Terminal control/Coloured text
• Terminal control/Cursor positioning
• Terminal control/Ringing the terminal bell
• Test integerness
• Text processing/2
• Text processing/Max licenses in use
• Textonyms
• The Twelve Days of Christmas
• Thiele's interpolation formula
• Thue-Morse
• Time a function
• Tokenize a string
• Tokenize a string with escaping
• Top rank per group
• Topic variable
• Topological sort
• Trabb Pardo–Knuth algorithm
• Trigonometric functions
• Truncatable primes
• Truncate a file
• Two Sum
• Type detection
• URL decoding
• URL encoding
• URL parser
• Ulam spiral (for primes)
• Unbias a random generator
• Undefined values
• Unicode variable names
• Unix/ls
• Update a configuration file
• Validate International Securities Identification Number
• Variables
• Variadic function
• Vector
• Vector products
• Vigenère cipher
• Walk a directory/Non-recursively
• Walk a directory/Recursively
• Web scraping
• Window creation
• Word wrap
• Write entire file
• Write float arrays to a text file
• Write to Windows event log
• XML/Input
• XML/XPath
• Y combinator
• Zeckendorf number representation
• Zero to the zero power
• Zig-zag matrix