![]() ![]() ![]() Operations on this tensor are then done abstractly, without needing to specify which representation to use. The user initially defines each tensor in OGRe using its explicit components in any single representation. This is done using an object-oriented programming approach, as detailed in the documentation. OGRe stays true to this definition, but takes away the complexities that come with combining tensors in different representations. Tensors are abstract objects, which can be represented as multi-dimensional arrays once a choice of index configuration and coordinate system is made. 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. OGRe is a modern Mathematica package for tensor calculus, designed to be both powerful and user-friendly. ![]()
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