3-sphere
= 3-sphere
{wiki=3-sphere}
A 3-sphere, often denoted as \\( S^3 \\), is a higher-dimensional analogue of a sphere. In simple terms, it is the set of points in four-dimensional Euclidean space (\\( \\mathbb\{R\}^4 \\)) that are at a constant distance (the radius \\( r \\)) from a central point (the origin).