I am a little confused about the notation of tensors. could someone please explain the indexes? like what is the difference between T(adsbygoogle = window.adsbygoogle || []).push({}); _{mn}and T_{nm}? and what about T[tex]^{m}_{n}[/tex] and T[tex]^{n}_{m}[/tex]? it would really be helpful if someone could give me an "intro to basic tensor notation" answer. i have no resources other than this, so please help!

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# Basic tensor help

**Physics Forums | Science Articles, Homework Help, Discussion**