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Tetrads

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Physics/Tetrads/IsTetrad
computes different forms of a null tetrad for the current spacetime metric

Physics/Tetrads/PetrovType
returns the Petrov type of the spacetime metric set or a list of Weyl scalars - computes the principal roots

Physics/Tetrads/SegreType
returns the Plebanski-Petrov and Segre type of the spacetime metric set or a list of Ricci scalars - computes the principal roots

Physics/Tetrads/TransformTetrad
transforms a tetrad into canonical form, or using one of six standard transformations, or using a given set of transformation equations

Physics/Tetrads/eta_
represents and computes a tetrad (vierbein) and the corresponding null vectors of the Newman-Penrose formalism

Physics/Tetrads/gamma_
represents and computes the Ricci rotation coefficients

Physics/Tetrads/l_
represents the 1st null vector of the Newman-Penrose formalism

Physics/Tetrads
Overview of the Physics[Tetrads] Subpackage

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