could someone please explain tensors to me or at least tell of web site that explaines them
Quick intro to tensor analysis-- probably the simplest I've found.
It's very easy to comprehend, it just depends on your background. (Especially with linear algebra, obviously)
search this subforum (there is a search function), the question 'what is a tensor?' comes up regularly here, you will find some nice explanations
i am also trying to learn it
there are some websites that i find useful (especially if you are also interested inphysics):
http://ocw.mit.edu/OcwWeb/Physics/8-962Spring2002/LectureNotes/index.htm [Broken] --->>(robphy's recommendation in another discussion)
Also i have to warn you about notation some of them may not be agree in notation so it is better to choose one of them
Separate names with a comma.