The routine returns the method used to define the triangle T. It returns ``points'', ``sides'', or ``angle''. See the help page of triangle for the explanation of the output.

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

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

$\mathrm{point}\left(A\,0\,0\right),\mathrm{point}\left(B\,1\,1\right),\mathrm{point}\left(C\,1\,0\right)\:$

$\mathrm{triangle}\left(\mathrm{T1}\,\left[A\,B\,C\right]\right)\:$

$\mathrm{method}\left(\mathrm{T1}\right)$

$\mathrm{points}$

$\mathrm{triangle}\left(\mathrm{T2}\,\left[3\,3\,3\right]\right)\:$

$\mathrm{method}\left(\mathrm{T2}\right)$

$\mathrm{sides}$