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diracs-cat
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Does anybody know of a software (or software package) that can solve the Euler-Lagrange field equations for a manifestly-covariant Lagrangian density in full tensor form? Mathematica has a "Variational Methods" package, but none of the examples given are in manifestly-covariant form. I am not very experienced with any of the analytical computation softwares or their packages. Any help would be greatly appreciated! Thanks!