| surface_sphere | R Documentation | 
Surface of a sphere (arbitrary dimension).
surface_sphere(d, r = 1)
| d | dimension of the space | 
| r | radius of the sphere | 
The surface of the sphere of radius r in the
d-dimensional space.
r <- 2
surface_sphere(3, r)
4*pi*r^2
# perimeter of the unit circle:
surface_sphere(2)
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