Dimension

Description

Dimension is an option of several functions and denotes the space-time dimension. Possible settings are: 4, n, d, D, ... ,the variable does not matter, but it should have Head Symbol. 

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The dimension of the indices is not shown by default but can be inspected easily. 

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Setting the global variable $LorentzIndices to True will display the dimension (if different from 4) as a subscript. 

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The FeynCalc Book   previousDeltaFunctionPrime   nextDiracGamma
Converted from the Mathematica notebook Dimension.nb