CIndexQ

• CIndexQ[expr] gives True if expr is a valid component-index: {i, basis} or {i, -basis}, where i is an integer compatible with basis.
• CIndexQ[expr, basis] gives True if expr is a valid component-index belonging to basis.
• CIndexQ[expr, vbundle] gives True if expr is a valid component-index belonging to vbundle or to a subvbundle of vbundle.

• The correspondence between the integer cnumber and the basis is checked, using the function xCoba`CNumbersOf.
• See: Section 2.3.
• See also: BIndexQ, BCIndexQ, CDIndexQ, GIndexQ.
• New in version 0.
• Last update: 24-IX-2007 for version 0.9.3 of xTensor`.

Created by Mathematica  (May 16, 2008)