# Category:Fortran

**Fortran**

This

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

Garbage collected: | No |
---|---|

Type safety: | Safe |

Type strength: | Strong |

Type compatibility: | Nominative |

Type checking: | Static |

Lang tag(s): | fortran |

See Also: |

Fortran is the oldest programming language still in widespread use. The language has evolved considerably since it was first released in 1957. Fortran was original developed for scientific and engineering applications, and remains especially suited to numeric computation and scientific computing. By convention, versions before Fortran 90 are spelled with all uppercase letters (e.g. FORTRAN IV, FORTRAN 66, FORTRAN 77), while starting with Fortran 90, the mixed case spelling is used (i.e. Fortran 90, Fortran 95, Fortran 2003 and Fortran 2008). The most recent standard is Fortran 2018 (ISO/IEC 1539-1:2018).

FORTRAN 77, being quite old, lacks almost everything one expects from a modern programming language. It uses a fixed-length line and column oriented line format which was motivated by punch cards. Due to its age, and since FORTRAN compilers generally gave very good performance for numerical code, a lot of code, especially scientific code, was written in FORTRAN. Also, for quite a while there was no free Fortran 90 compiler, which also caused a lot of FORTRAN 77 code to be written even quite some time after Fortran 90 was standardized. Because of the large body of code written in FORTRAN 77 it remains relevant today. Indeed, every modern Fortran compiler still accepts FORTRAN 77 code.

Fortran 90 was a major revision of the language. It introduced a new free-form source code format, modern programming language features like modules, pointers and user-defined types, an improved type system for built-in types and superiour built-in array handling. Newer Fortran standards (Fortran 2003 and Fortran 2008) added further modern features, like support for object oriented programming, inheritance, polymorphism, parallel processing, and interoperability with the C programming language.

## Subcategories

This category has the following 3 subcategories, out of 3 total.

### @

- Fortran examples needing attention (empty)
- Fortran Implementations (3 P)
- Fortran User (99 P)

## Pages in category "Fortran"

The following 200 pages are in this category, out of 652 total.

(previous page) (next page)### O

### P

- Palindrome detection
- Pangram checker
- Parallel calculations
- Parametric polymorphism
- Parsing/RPN calculator algorithm
- Parsing/Shunting-yard algorithm
- Partition an integer x into n primes
- Pascal matrix generation
- Pascal's triangle
- Pathological floating point problems
- Peaceful chess queen armies
- Percentage difference between images
- Percolation/Mean run density
- Percolation/Site percolation
- Perfect numbers
- Perfect shuffle
- Perlin noise
- Permutations
- Pernicious numbers
- Phrase reversals
- Pi
- Pick random element
- Playing cards
- Pointers and references
- Polymorphic copy
- Polymorphism
- Polynomial long division
- Polynomial regression
- Population count
- Price fraction
- Primality by trial division
- Prime conspiracy
- Prime decomposition
- Primorial numbers
- Priority queue
- Probabilistic choice
- Problem of Apollonius
- Product of divisors
- Program name
- Program termination
- Proper divisors
- Pythagorean triples

### R

- Random number generator (device)
- Random number generator (included)
- Random numbers
- Range expansion
- Range extraction
- Rate counter
- Ray-casting algorithm
- Read a configuration file
- Read a file line by line
- Read a specific line from a file
- Read entire file
- Real constants and functions
- Reduced row echelon form
- Reflection/List properties
- Remove duplicate elements
- Remove lines from a file
- Remove vowels from a string
- Rename a file
- Repeat a string
- Return multiple values
- Reverse a string
- Reverse words in a string
- RIPEMD-160
- Rock-paper-scissors
- Roman numerals/Decode
- Roman numerals/Encode
- Roots of a function
- Roots of a quadratic function
- Roots of unity
- Rot-13
- Run-length encoding
- Runge-Kutta method

### S

- Search a list
- Search a list of records
- Secure temporary file
- SEDOLs
- Selective file copy
- Semordnilap
- Send email
- Sequence of non-squares
- Sequence of primes by trial division
- Sequence of primorial primes
- Seven-sided dice from five-sided dice
- SHA-1
- SHA-256
- Shell one-liner
- Shoelace formula for polygonal area
- Short-circuit evaluation
- Show ASCII table
- Show the epoch
- Sierpinski carpet
- Sierpinski triangle
- Sieve of Eratosthenes
- Simulated annealing
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Element removal
- Singly-linked list/Traversal
- Sleep
- Sleeping Beauty problem
- Smith numbers
- Soloway's recurring rainfall
- Solve the no connection puzzle
- Sort an array of composite structures
- Sort an integer array
- Sort disjoint sublist
- Sort stability
- Sort three variables
- Sort using a custom comparator
- Sorting algorithms/Bead sort
- Sorting algorithms/Bogosort
- Sorting algorithms/Bubble sort
- Sorting Algorithms/Circle 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/Patience sort
- Sorting algorithms/Quicksort
- Sorting algorithms/Radix sort
- Sorting algorithms/Selection sort
- Sorting algorithms/Shell sort
- Sorting algorithms/Sleep sort
- Sorting algorithms/Stooge sort
- Special characters
- Special variables
- Spiral matrix
- Split a character string based on change of character
- Stack
- Stack traces
- Stair-climbing puzzle
- Statistics/Basic
- Statistics/Normal distribution
- Stem-and-leaf plot
- Stern-Brocot sequence
- Stream merge
- 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 block comments
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Subleq
- Substitution cipher
- Substring
- Substring/Top and tail
- Subtractive generator
- Sudoku
- 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 squares
- Sum to 100
- Sutherland-Hodgman polygon clipping
- Symmetric difference
- System time

### T

- Take notes on the command line
- Taxicab numbers
- Temperature conversion
- Terminal control/Clear the screen
- Terminal control/Coloured text
- Terminal control/Cursor positioning
- Ternary logic
- Test a function
- Test integerness
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- The sieve of Sundaram
- The Twelve Days of Christmas
- Thue-Morse
- Tic-tac-toe
- Time a function