Problem Definition
Available at Sum square difference
The sum of the squares of the first ten natural numbers is,
12 + 22 + ... + 102 = 385
The square of the sum of the first ten natural numbers is,
(1 + 2 + ... + 10)2 = 552 = 3025
Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025-385 = 2640.Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
Implementation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| open System | |
| let squareOfSum n = | |
| let i = n*(n+1)/2 | |
| i*i | |
| let sumOfSquare n = | |
| [1..n] | |
| |> List.fold (fun acc x -> acc + x*x) 0 | |
| let solveEuler6 N = | |
| (squareOfSum N)- (sumOfSquare N) |
adilakhter λ 
One thought on “Project Euler 06. Sum square difference with F#”