# Gallery item: Moebius strip normal vector field

The Möbius strip is the image of ❨(1 + 0.5⋅v⋅cos(0.5⋅u))⋅cos(u), (1 + 0.5⋅v⋅cos(0.5⋅u))⋅sin(u), 0.5⋅v⋅sin(0.5⋅u)❩ where u ∈ [0, 2⋅π] and v ∈ [-1, 1]. It is an intriguing surface with only one side.

This image shows a normal vector field to a Möbius strip.