Re: TensorQ
- To: mathgroup at smc.vnet.net
- Subject: [mg20767] Re: TensorQ
- From: "Yukio Hamada" <y-hamada at pop12.odn.ne.jp>
- Date: Thu, 11 Nov 1999 00:22:44 -0500
- Organization: odn.ne.jp
- References: <803a25$ao3@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
How do you do. Sorry . my Engilish composition is broken. I am studying it now. >I was thinking it would be nice to have a function that determines if >something is a vector, matrix, or higher dimension analogue of a matrix. Is >something like that called a tensor? I know almost nothing about tensors. I think Your notion is mistake. (Excuse me) Tensor is a mapping from a Vector space (V(*V)) to a real number (R). Tensor : V*(*V) -> R For Example , there is the Inner Product (a,b). Here "a" and "b" are elements of V. (a,b) = cos*|a|*|b|. (This ia a real number) (V*V -> R). Did you learn at High School ?. Referrences "Applied Differential Geometry" William L. Burke Cambridge UP. For your useful. PS: I connat understand MASMATICA. << Yukio Hamada <y-hamada at pop12.odn.ne.jp>