Unit disc
= Unit disc
{title2=$\mathbb D$}
= Open unit disk
{synonym}
The unit disc in the <complex plane> is $\mathbb D=\{z\in\mathbb C:|z|<1\}$.
= Unit disc
{title2=$\mathbb D$}
= Open unit disk
{synonym}
The unit disc in the <complex plane> is $\mathbb D=\{z\in\mathbb C:|z|<1\}$.