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Posting and answering questions you have already found the answer to

Sometimes I find I know a good method to do something (for example writing a clean and efficient function to convert rotations) or I know a good explanation of a concept that later could be useful for other users to understand how to program it, or how to study the concept (for example understanding quaternions).

If I think I know something that must be shared because it is going to be useful to many many people my quiestion is:

Which is the right place to share it? How do I share it (as a question-answer, as a wiki,...)?


2 Answers 2


Simply, just post a question asking about it, and post an answer with what you think is a good solution. This is even encouraged, so don't worry and just go for it

  • Thats what I have been doing so far, but sometimes I think i would be nice to have some kind of wiki on the topic, a bit more extense.
    – Jav_Rock
    Jan 19, 2012 at 11:48
  • Answer can be as long as you want (yes, there's some limit but I bet you won't exceed it). Anyone can edit an answer, so it is wiki by default
    – Martin.
    Jan 19, 2012 at 11:49

If you want to share something general you might want to consider to contribute to the relevant tag wikis. Except for explaining the tag in question, linking to common question tag wikis are excellent places to define the concept of the tag's subject and to explain the concept. For example, you seem to have focused questions and thus you might want to elaborate on common problems in that tag wiki https://stackoverflow.com/tags/opencv/info.

See also:

  • Actually I created the one on quaternions, which was empty. stackoverflow.com/questions/tagged/quaternion
    – Jav_Rock
    Jan 19, 2012 at 11:55
  • @Jav_Rock Then it might make sense for you to elaborate on that tag wiki if you want to share general knowledge.
    – N.N.
    Jan 19, 2012 at 11:58

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