Unit sphere
= Unit sphere
{title2=$S^n$}
{wiki}
The unit sphere in $\mathbb R^{n+1}$ is
$$
S^n=\{x\in\mathbb R^{n+1}:\|x\|=1\}.
$$
= Unit sphere
{title2=$S^n$}
{wiki}
The unit sphere in $\mathbb R^{n+1}$ is
$$
S^n=\{x\in\mathbb R^{n+1}:\|x\|=1\}.
$$