Decision Mathematics

[garytse86]

Does anyone know how the computer applies the planarity algorithm? We can do the algorithm in our head but how does the computer know whether two lines are intersecting?

[Guybrush Threepwood]

does this helps?

http://www.geog.ubc.ca/courses/klink/gis.notes/ncgia/u32.html
http://mathforum.org/library/drmath/view/51744.html