From acf56f55a3cc21f2accd48eed1b78411ad5b569a Mon Sep 17 00:00:00 2001 From: Mark Simpson Date: Thu, 1 Aug 2024 18:39:51 -0400 Subject: [PATCH] Add missing introduction to pascals-triangle --- .../pascals-triangle/.docs/introduction.md | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 exercises/practice/pascals-triangle/.docs/introduction.md diff --git a/exercises/practice/pascals-triangle/.docs/introduction.md b/exercises/practice/pascals-triangle/.docs/introduction.md new file mode 100644 index 00000000..60b8ec30 --- /dev/null +++ b/exercises/practice/pascals-triangle/.docs/introduction.md @@ -0,0 +1,22 @@ +# Introduction + +With the weather being great, you're not looking forward to spending an hour in a classroom. +Annoyed, you enter the class room, where you notice a strangely satisfying triangle shape on the blackboard. +Whilst waiting for your math teacher to arrive, you can't help but notice some patterns in the triangle: the outer values are all ones, each subsequent row has one more value than its previous row and the triangle is symmetrical. +Weird! + +Not long after you sit down, your teacher enters the room and explains that this triangle is the famous [Pascal's triangle][wikipedia]. + +Over the next hour, your teacher reveals some amazing things hidden in this triangle: + +- It can be used to compute how many ways you can pick K elements from N values. +- It contains the Fibonacci sequence. +- If you color odd and even numbers differently, you get a beautiful pattern called the [Sierpiński triangle][wikipedia-sierpinski-triangle]. + +The teacher implores you and your classmates to lookup other uses, and assures you that there are lots more! +At that moment, the school bell rings. +You realize that for the past hour, you were completely absorbed in learning about Pascal's triangle. +You quickly grab your laptop from your bag and go outside, ready to enjoy both the sunshine _and_ the wonders of Pascal's triangle. + +[wikipedia]: https://en.wikipedia.org/wiki/Pascal%27s_triangle +[wikipedia-sierpinski-triangle]: https://en.wikipedia.org/wiki/Sierpi%C5%84ski_triangle