divide me.fsx

This script finds all possible divisors of a number

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let checknumber number divisor =
    let divided = (float)number / (float)divisor
    if divided = floor divided then
        divided
        |> int
        |> printfn "%i = %i * %i" number divisor

let rec finddivisor number divisor numbers = 
    match numbers with
    | head :: tail -> 
        checknumber number head
        finddivisor number head tail
    | [] -> printfn "finish"

let divisions number =
    let list = [1..number]
    finddivisor number list.Head list

let ``find my divisors`` = 12345

divisions ``find my divisors``

val checknumber : number:int -> divisor:int -> unit

Full name: Script.checknumber

val number : int

val divisor : int

val divided : float

Multiple items
val float : value:'T -> float (requires member op_Explicit)

Full name: Microsoft.FSharp.Core.Operators.float

--------------------
type float = System.Double

Full name: Microsoft.FSharp.Core.float

--------------------
type float<'Measure> = float

Full name: Microsoft.FSharp.Core.float<_>

val floor : value:'T -> 'T (requires member Floor)

Full name: Microsoft.FSharp.Core.Operators.floor

Multiple items
val int : value:'T -> int (requires member op_Explicit)

Full name: Microsoft.FSharp.Core.Operators.int

--------------------
type int = int32

Full name: Microsoft.FSharp.Core.int

--------------------
type int<'Measure> = int

Full name: Microsoft.FSharp.Core.int<_>

val printfn : format:Printf.TextWriterFormat<'T> -> 'T

Full name: Microsoft.FSharp.Core.ExtraTopLevelOperators.printfn

val finddivisor : number:int -> divisor:int -> numbers:int list -> unit

Full name: Script.finddivisor

val numbers : int list

val head : int

val tail : int list

val divisions : number:int -> unit

Full name: Script.divisions

Multiple items
val list : int list

--------------------
type 'T list = List<'T>

Full name: Microsoft.FSharp.Collections.list<_>

property List.Head: int

val ( find my divisors ) : int

Full name: Script.( find my divisors )

Raw view Test code New version

More information

Link:	http://fssnip.net/nH
Posted:	10 years ago
Author:	Knerd
Tags:	division , tryfsharp