[GiNaC-list] How to convert epsilon_tensor in a matrix?

Marco André Ferreira Dias mdias at ift.unesp.br
Sun Feb 26 16:06:37 CET 2012


I have a very naive question: my program compute some dirac_traces, and
some epsilon_tensors arises in this process. I have to convert the
tensorial structure to matricial to compute it numerically, but until now I
don't figure out how to manipulate expressions like this
Note that the episilon tensor is fully contracted by four (4x1) vectors.
I will be glad for any suggestion given!

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