FEYN CALC SYMBOL

DiracTrick


contracts gamma matrices with each other and performs several simplifications, but no expansion, use Calc or DiracSimplify for non-commutative expansion.

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Basic Examples  (1)Basic Examples  (1)

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This is a string of Dirac matrices in four dimensions.
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This is a string of Dirac matrices in D dimensions.
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By default gamma^5is moved to the right.
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