VECDIM _ _ _ _ _ _ _ _ _ _ _ _ command
The command vecdim changes the vector dimension from 4 to an arbitrary integer or symbol. Used in high-energy physics calculations.
vecdim<dimension>
<dimension> must be either an integer or a valid scalar identifier that does not have a floating-point value.
The eps operator and the gamma_5 symbol (A) are not properly defined in anything except four dimensions and will print an error message if you use them that way. The other high-energy physics operators should work without problem.