On 2007-08-14, Michael Vanier <[EMAIL PROTECTED]> wrote: > I'm reminded of a physics teacher who was having a similar problem > explaining the concept of tensors, until he said that "a tensor > is something that transforms like a tensor does!".
Which is silly. A tensor is a linear function of vectors and linear functions of vectors. That has implications about its transformation properties, and anything with those transformation properties can be used as a tensor, but this formulation gives the flexibility to say what happens when you're using different bases for different "slots". -- Aaron Denney -><- _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
