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F# is a high-level programming language which supports functional and object-oriented programming in addition to traditional procedural programming.
Elements of syntax:
|Nestable comments||(* ... *)|
Hello, World!:Example for versions fsharp 2.0.0
printfn "Hello, World!"
Factorial:Example for versions fsharp 2.0.0
This example uses recursive definition of factorial, expressed in procedural paradigm.
factorial defines the actual factorial-calculating routine, and
printFact defines the routine that outputs calculated factorials in required format.
let rec factorial n = match n with | 0 -> 1 | _ -> n * factorial (n - 1) let rec printFact n = match n with | 0 -> printfn "0! = 1" | _ -> printFact (n-1) printfn "%d! = %d" n (factorial (n)) printFact(16)
Fibonacci numbers:Example for versions fsharp 2.0.0
This example uses straightforward recursive definition of Fibonacci numbers, expressed in procedural paradigm.
let rec fibonacci n = match n with | 1 | 2 -> 1 | _ -> fibonacci (n-1) + fibonacci (n-2) let rec printFib n = match n with | 1 -> printf "%d, " (fibonacci (n)) | _ -> printFib (n-1) printf "%d, " (fibonacci (n)) printFib(16) printfn "..."