  We illustrate the dimensional regularization technique using a simple problem
from elementary electrostatics. We contrast this approach with the cutoff
regularization approach, and demonstrate that dimensional regularization
preserves the translational symmetry. We then introduce a Minimal Subtraction
(MS) and a Modified Minimal Subtraction (MS-Bar) scheme to renormalize the
result. Finally, we consider dimensional transmutation as encountered in the
case of compact extra-dimensions.
