ContractMetric

• ContractMetric[expr, metric] contracts all instances of metric in expr. If the second argument is a list then the function is folded sequentially on expr.
• ContractMetric[expr] contracts all metrics.

• See: Section 4.6.
• See also: DefMetric, SeparateMetric, EIndexQ, PairQ.
• New in version 0.
• Last update: 16-V-2008 for version 0.9.5 of xTensor`.

Created by Mathematica  (May 16, 2008)