SetCharacters

• SetCharacters[expr, tensor, chars] returns expr with all instances of tensor[inds] corrected to match the characters chars, a list of elements Up or Down.
• SetCharacters[expr, tensor] uses the characters determined at definition time. The second argument is listable.
• SetCharacters[expr] corrects the characters in all tensors in expr.

• The command introduces deltas, which automatically transform into metrics or Basis objects if required.
• See: Section 4.6.
• See also: ContractMetric, SeparateMetric.
• New in version 0.
• Last update: 25-X-2007 for version 0.9.3 of xTensor`.

Created by Mathematica  (May 16, 2008)