The circumcircle cc of a triangle T is a circle circumscribed about the triangle.

If the optional argument is given and is of the form 'centername' = cn where cn is name, cn will be the name of the center of cc.

For a detailed description of the circumcircle cc, use the routine detail (i.e., detail(cc);)

Note that the routine only works if the vertices of the triangle are known.

The command with(geometry,circumcircle) allows the use of the abbreviated form of this command.

$\mathrm{with}\left(\mathrm{geometry}\right)\:$

$\mathrm{triangle}\left(T\,\left[\mathrm{point}\left(A\,0\,0\right)\,\mathrm{point}\left(B\,2\,0\right)\,\mathrm{point}\left(C\,1\,3\right)\right]\right)\:$

$\mathrm{circumcircle}\left(\mathrm{Elc}\,T\,'\mathrm{centername}'=\mathrm{OO}\right)$

$\mathrm{detail}\left(\mathrm{Elc}\right)$

$\mathrm{draw}\left(\left\{\mathrm{Elc}\,T\right\}\,\mathrm{printtext}=\mathrm{true}\right)$