find the line through the midpoint of two given points and perpendicular to the line joining them
PerpenBisector(l, A, B)
the name of the line to be created
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.
assume that the names of the horizontal and vertical axes are _x and _y, respectively
name of the objectlform of the objectline2dequation of the line−2+2⁢_x=0
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