[fauigerzigerk]

So here's my advice on the writing an article like this: Show the result first, then explain how you arrived there!

Otherwise some readers will end up frustrated with the solution after absorbing tons of detail, and others will have given up even though they might have liked the result.

[cylix]

Thank you for your advice! This is my real first article (I've never written articles as long as this one before, and I've never written articles in English earlier), so these kind of feedbacks are really interesting :)