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Dim

Dim or
is the non-integer number of spacetime dimensions.

Details and OptionsDetails and Options

ExamplesExamplesopen allclose all

Basic Examples  (4)Basic Examples  (4)

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Apply LoopRefine to safely obtain the limit:

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Use Block to temporarily assign a value:

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Take care using this construct when computing loop integrals, since setting =4 prematurely may lead to incorrect finite parts.