MathGR

MathGR is a package for GR calculation, written in Mathematica. The manual of the package is available at http://arxiv.org/abs/1306.1295.

Last updated September 9, 2015 general relativity tensor History Delete Edit Link

OGRe: Object-oriented General Relativity

OGRe is a modern Mathematica package for tensor calculus, designed to be both powerful and user-friendly. It can be used in a variety of contexts where tensor calculations are needed, in both mathematics and physics, but it is especially suitable for general relativity. Tensors are abstract objects, which can be represented as multi-dimensional arrays once a choice of index configuration and coordinate system is made. OGRe stays true to this definition, but takes away the complexities that come with combining tensors in different representations. This is done using an object-oriented programming approach, as detailed in the documentation. The user initially defines each... Read more.

RGTC: Riemannian Geometry & Tensor Calculus

This package introduces definitions for tensor calculations in Riemannian Geometry.

Last updated September 10, 2015 physcs tensor general relativity History Delete Edit Link

TensoriaCalc

TensoriaCalc tackles (semi-)Riemannian tensor calculus problems encountered in general relativity, cosmology, and field theory. Currently, it calculates geometric objects – Christoffel symbols, the Riemann curvature tensor, Ricci tensor and scalar, etc. – given a metric and the relevant coordinates; and performs basic operations such as covariant derivatives of tensors.

Last updated September 25, 2015 tensors general relativity History Delete Edit Link