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# Difference Of Squares Find the difference between the square of the sum and the sum of the squares of the first N natural numbers. The square of the sum of the first ten natural numbers is (1 + 2 + ... + 10)² = 55² = 3025. The sum of the squares of the first ten natural numbers is 1² + 2² + ... + 10² = 385. Hence the difference between the square of the sum of the first ten natural numbers and the sum of the squares of the first ten natural numbers is 3025 - 385 = 2640. ## Getting Started For installation and learning resources, refer to the [exercism help page](http://exercism.io/languages/ocaml). ## Installation To work on the exercises, you will need `Opam` and `Core`. Consult [opam](https://opam.ocaml.org) website for instructions on how to install `opam` for your OS. Once `opam` is installed open a terminal window and run the following command to install core: ```bash opam install core ``` To run the tests you will need `OUnit`. Install it using `opam`: ```bash opam install ounit ``` ## Running Tests A Makefile is provided with a default target to compile your solution and run the tests. At the command line, type: ```bash make ``` ## Interactive Shell `utop` is a command line program which allows you to run Ocaml code interactively. The easiest way to install it is via opam: ```bash opam install utop ``` Consult [utop](https://github.com/diml/utop/blob/master/README.md) for more detail. ## Feedback, Issues, Pull Requests The [exercism/ocaml](https://github.com/exercism/ocaml) repository on GitHub is the home for all of the Ocaml exercises. If you have feedback about an exercise, or want to help implementing a new one, head over there and create an issue. We'll do our best to help you! ## Source Problem 6 at Project Euler [http://projecteuler.net/problem=6](http://projecteuler.net/problem=6) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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