indexed objects

[Benedikt Plümper]

Hi everybody!


I tried to figer out how to use the classes of indices and indexed objects
built in into GiNaC but to be honest I failed. Unfortunately there's
nothing about this in the tutorial. Is there any example available? I
could initialize color or lorentzvectors or their indices but I don't know
how to handle scalar products or simplify a chain of color objects, etc.

Thanks for any help!

	Benedikt



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