The routine finds the line which goes through the midpoint of points A, B and is perpendicular to the line joining them.

For a detailed description of the line to be created l, use the routine detail (e.g., detail(l))

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

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

$\mathrm{point}\left(A\,0\,0\right),\mathrm{point}\left(B\,2\,0\right)$

$A,B$

$\mathrm{PerpenBisector}\left(l\,A\,B\right)$

$l$

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

assume that the names of the horizontal and vertical axes are _x and _y, respectively

$\begin{array}{ll}\text{name of the object}& l\\ \text{form of the object}& \mathrm{line2d}\\ \text{equation of the line}& -2+2\mathrm{\_x}=0\end{array}$