FindIndices

• FindIndices[expr] returns an IndexList with the (order kept) union of all g-indices and patterns of expr.

• FindIndices always returns a list of indices with head IndexList, to avoid confusion with the notation for basis and component indices.
• Indices in expressions with free ultraindices and indices in Scalar expressions or scalar-functions are not found.
• FindIndices has attribute HoldFirst, and hence requires very often the use of Evaluate.
• FindIndices[0] returns IndexList[AnyIndices].
• See: Section 2.7.
• See also: FindFreeIndices, FindDummyIndices, IsIndexOf, $FindIndicesAcceptedHeads.
• New in version 0.
• Last update: 24-IX-2007 for version 0.9.3 of xTensor`.

Created by Mathematica  (May 16, 2008)