Sha256: 8d44700fdf781c1590768355c0c9e6bffa9e5ab0b319403a690b727eeb490abd

Contents?: true

Size: 1.07 KB

Versions: 7

Compression:

Stored size: 1.07 KB

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](http://exercism.io/languages/groovy).

Run the tests by executing the test script.

```
$ groovy ./HelloWorldSpec.groovy
```

After the first test(s) pass, continue by commenting out or removing the `@Ignore` annotations prepending other tests.

When all tests pass, congratulations!

## 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

7 entries across 7 versions & 1 rubygems

Version Path
trackler-2.2.1.11 tracks/groovy/exercises/difference-of-squares/README.md
trackler-2.2.1.10 tracks/groovy/exercises/difference-of-squares/README.md
trackler-2.2.1.9 tracks/groovy/exercises/difference-of-squares/README.md
trackler-2.2.1.8 tracks/groovy/exercises/difference-of-squares/README.md
trackler-2.2.1.7 tracks/groovy/exercises/difference-of-squares/README.md
trackler-2.2.1.6 tracks/groovy/exercises/difference-of-squares/README.md
trackler-2.2.1.5 tracks/groovy/exercises/difference-of-squares/README.md