Talk:General Relativity/Raising and Lowering Indices

Could you please provide a more thorough explanation/derivation? I think that the pages on GR have been fairly straightforward up until here, and for someone trying to learn GR from a textbook and without a teacher, these equations may be not be as obvious. I think there should be a review of the dual basis here (I think... I don't fully understand this page). Also, there should be an example of what it physically means to raise or lower an index. Look back at the first two lessons for what I mean by example.

-Itzamna 2 Feb 2009

You make an excellent point and I will give a much more thorough explanation when I re-organize the book.

Blathem (discuss • contribs) 22:08, 14 February 2012 (UTC)