Gravitation
An object-oriented package for gravitational tensor calculation, comprising calculation of;
- the Levi-Civita connection, the Riemann tensor, the Ricci tensor, the Ricci scalar, the Einstein tensor, the Weyl tensor, and the Kretschmann scalar
- the spin connection, and the spin curvature tensor
The package treats all the following three cases;
- the purely metric case
- the purely tetrad case
- the mixed case, where both metric and tetrad are present (may, or may not, be independent)
The package is able to treat as independent variables the metric, the Levi-Civita connection, the tetrad, and the spin connection
