>http://www.catb.org/esr/faqs/smart-questions.html
>
>The author (Eric Steven Raymond) gives very interesting hints about asking questions, beneficial to both the OP (learning new stuff), and the responders (learning new stuff).
>
>On top of my mind, the OP is inspired to mention:
>- what he/she learned from searching
>- existing code and/or steps to reproduce
>- expected result
>- obtained result
>- attempts to solve so far

Thank you, this is some very interesting references.