ChangeCurvature

• ChangeCurvature[expr,covd1, covd2] changes the curvature tensors (Riemann, Ricci and RicciScalar) of covd1 by the curvature tensors of covd2 using the  Christoffel relating covd1 and covd2. The second argument is listable.
• ChangeCurvature[expr,covd1] is converted into ChangeCurvature[expr,covd1, PD].
• ChangeCurvature[expr] is converted into ChangeCurvature[expr,$CovDs].

• The equivalent name RiemannToChristoffel is kept for backward compatibility.
• See: Section 4.5.
• See also: Riemann, Ricci, RicciScalar, $CovDs.
• New in version 0.
• Last update: 17-X-2007 for version 0.9.3 of xTensor`.

Created by Mathematica  (May 16, 2008)