Circumference
= Circumference
{title2=$C=2\pi r$}
The circumference of a <circle> is its boundary <arc length>. For <radius> $r$, it equals $2\pi r$. This growing boundary length accounts for the radial factor in the <Rayleigh distribution>.
= Circumference
{title2=$C=2\pi r$}
The circumference of a <circle> is its boundary <arc length>. For <radius> $r$, it equals $2\pi r$. This growing boundary length accounts for the radial factor in the <Rayleigh distribution>.