BreakChristoffel

• BreakChristoffel[expr,chr, covd] transforms all instances of chr[inds] (of covd1 from covd2) in expr into Christoffel[covd1, covd][inds] - Christoffel[covd2, covd][inds].
• BreakChristoffel[expr,chr] is converted into BreakChristoffel[expr,chr, PD]
• BreakChristoffel[expr,covd] breaks all Christoffel tensors using covd as intermediate connection.
• BreakChristoffel[expr] is converted into BreakChristoffel[expr, PD]

• See: Section 4.5.
• See also: Christoffel.
• New in version 0.
• Last update: 16-X-2007 for version 0.9.3 of xTensor`.

Created by Mathematica  (May 16, 2008)