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Here you can ask and answer questions, comment and vote for the questions of others and their answers. Both questions and answers can be revised and improved. Questions can be tagged with the relevant keywords to simplify future access and organize the accumulated material.

This Q&A site is moderated by its members, hopefully - including yourself! Moderation rights are gradually assigned to the site users based on the accumulated "karma" points. These points are added to the users account when others vote for his/her questions or answers. These points (very) roughly reflect the level of trust of the community.

No points are necessary to ask or answer the questions - so please - join us!