The Clifford torus is the product of two circles of radius 
in the unit sphere 
. A parametrization is
 |
where 
. Its induced metric is flat, its mean curvature vector vanishes, and its area
is 
. It is a minimal
Clifford hypersurface, but is not a totally
geodesic submanifold. It gives the dimension-two
comparison value in the Solomon-Yau
least-volume conjecture.
