# Category:Sidef

**Sidef**

This

**programming language**may be used to instruct a computer to perform a task.

Official website |
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Execution method: | Interpreted |
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Garbage collected: | Yes |

Parameter passing methods: | By reference |

Type strength: | Weak |

Type compatibility: | Duck |

Type expression: | Implicit |

Type checking: | Dynamic |

Lang tag(s): | ruby |

See Also: |

Can't install Sidef locally?

Sidef is a modern, dynamic, object-oriented programming language, focusing on simplicity, readability and elegance, taking the best from languages like Ruby, Go, Raku and Julia.

The language is mostly used as a research programming language.

For more details, see:

- Gitbook: https://trizen.gitbook.io/sidef-lang/
- Tutorial: https://notabug.org/trizen/sidef/wiki
- Development page: https://github.com/trizen/sidef

## Todo

## Pages in category "Sidef"

The following 200 pages are in this category, out of 1,054 total.

(previous page) (next page)### D

- Dice game probabilities
- Digit fifth powers
- Digital root
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dinesman's multiple-dwelling problem
- Disarium numbers
- Discordian date
- Display a linear combination
- Distinct palindromes within decimal numbers
- Distinct power numbers
- Distribution of 0 digits in factorial series
- Diversity prediction theorem
- DNS query
- Dot product
- Double Twin Primes
- Doubly-linked list/Element definition
- Dragon curve
- Draw a clock
- Draw a cuboid
- Draw a sphere
- Duffinian numbers
- Dynamic variable names

### E

- Earliest difference between prime gaps
- Egyptian division
- Eisenstein primes
- EKG sequence convergence
- Element-wise operations
- Elementary cellular automaton
- Elementary cellular automaton/Infinite length
- Elementary cellular automaton/Random number generator
- Elliptic curve arithmetic
- Emirp primes
- Empty directory
- Empty program
- Empty string
- Enforced immutability
- Entropy
- Entropy/Narcissist
- Enumerations
- Environment variables
- Equal prime and composite sums
- Equilibrium index
- Erdös-Selfridge categorization of primes
- Erdős-Nicolas numbers
- Erdős-primes
- Esthetic numbers
- Ethiopian multiplication
- Euclid-Mullin sequence
- Euclidean rhythm
- Euler method
- Euler's constant 0.5772...
- Euler's identity
- Euler's sum of powers conjecture
- Evaluate binomial coefficients
- Even numbers which cannot be expressed as the sum of two twin primes
- Even or odd
- Evolutionary algorithm
- Exactly three adjacent 3 in lists
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute a system command
- Execute Brain****
- Execute HQ9+
- Exponentiation operator
- Exponentiation order
- Extend your language
- Extensible prime generator
- Extra primes
- Extract file extension
- Extreme floating point values
- Extreme primes

### F

- Factor-perfect numbers
- Factorial
- Factorial primes
- Factorions
- Factors of a Mersenne number
- Factors of an integer
- Fairshare between two and more
- Farey sequence
- Fast Fourier transform
- FASTA format
- Faulhaber's formula
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fermat numbers
- Fermat pseudoprimes
- Fibonacci matrix-exponentiation
- Fibonacci n-step number sequences
- Fibonacci sequence
- Fibonacci word
- Fibonacci word/fractal
- File extension is in extensions list
- File input/output
- File modification time
- File size
- File size distribution
- Filter
- Find adjacent primes which differ by a square integer
- Find common directory path
- Find duplicate files
- Find first and last set bit of a long integer
- Find first missing positive
- Find largest left truncatable prime in a given base
- Find limit of recursion
- Find palindromic numbers in both binary and ternary bases
- Find prime n such that reversed n is also prime
- Find prime numbers of the form n*n*n+2
- Find square difference
- Find squares n where n+1 is 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 whose first and last three letters are equal
- First 9 prime Fibonacci number
- First class environments
- First perfect square in base n with n unique digits
- First power of 2 that has leading decimal digits of 12
- First-class functions
- First-class functions/Use numbers analogously
- Five weekends
- Fivenum
- FizzBuzz
- Flatten a list
- Flow-control structures
- Floyd's triangle
- Floyd-Warshall algorithm
- Forbidden numbers
- Forest fire
- Fork
- Formatted numeric output
- Fortunate numbers
- Forward difference
- Four bit adder
- Four is magic
- Four sides of square
- Fractal tree
- Fractran
- Free polyominoes enumeration
- French Republican calendar
- Frobenius numbers
- FTP
- Function composition
- Function definition
- Function frequency
- Fusc sequence

### G

- Gamma function
- Gapful numbers
- Gauss-Jordan matrix inversion
- Gaussian elimination
- General FizzBuzz
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generate random numbers without repeating a value
- Generator/Exponential
- Generic swap
- Get system command output
- Getting the number of decimal places
- Giuga numbers
- Globally replace text in several files
- Golden ratio/Convergence
- Gray code
- Grayscale image
- Greatest common divisor
- Greatest element of a list
- Greatest subsequential sum
- Greedy algorithm for Egyptian fractions
- Guess the number
- Guess the number/With feedback
- Guess the number/With feedback (player)
- GUI/Maximum window dimensions

### H

- Hailstone sequence
- Hamming numbers
- Handle a signal
- Happy numbers
- Harshad or Niven series
- Hash from two arrays
- Hash join
- Haversine formula
- Hello world/Graphical
- Hello world/Line printer
- Hello world/Newline omission
- Hello world/Standard error
- Hello world/Text
- Hello world/Web server
- Here document
- Heronian triangles
- Hickerson series of almost integers
- Higher-order functions
- Hilbert curve
- History variables
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Hofstadter-Conway $10,000 sequence
- Holidays related to Easter
- Home primes
- Honaker primes
- Honeycombs