[GiNaC-devel] Another bug in clifford.cpp

[Vladimir Kisil]

		I cannot say anything about dirac_slash, thus here are some
  comments on the second topic:

>>>>> "CD" == Chris Dams <Chris.Dams at mi.infn.it> writes:
    CD> (2) Why does the metric have indices?

	It will be nice to combine two things: 

	(a) to standardise storage of metric to an object of certain type;
	(b) to have a freedom to define metric from many different objects like
  matrices or tensors.

  Thus indexed object is chosen as a standard storage for a metric with
  its first component to hold actual metric (e.g. matrix or
  tensor). Indices are indeed somehow superficial but having some
  default values for them seems to be useful for example in
  same_metric(). 

  Best wishes,
  Vladimir
-- 
Vladimir V. Kisil     email: kisilv at maths.leeds.ac.uk
--                      www: http://maths.leeds.ac.uk/~kisilv/