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Contents

# 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.

* * * *

For installation and learning resources, refer to the [exercism help page][].

[exercism help page]: http://exercism.io/languages/lfe

To run the provided tests, you will need `make`.
Open a terminal window and run the following from the exercise directory:

```sh
make test
```

You should now be able to see the results of the test suite for the exercise.

## 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.

Version data entries

174 entries across 174 versions & 1 rubygems

Version Path
trackler-2.2.1.180 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.179 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.178 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.177 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.176 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.175 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.174 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.173 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.172 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.171 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.170 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.169 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.167 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.166 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.165 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.164 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.163 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.162 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.161 tracks/lfe/exercises/difference-of-squares/README.md
trackler-2.2.1.160 tracks/lfe/exercises/difference-of-squares/README.md