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Line segments are said to intersect when they cross each other. This can be determined mathematically by analyzing the endpoints of the line segments. Drag the endpoints to explore cases of intersecting line segments. In this Demonstration, the segments turn red when they intersect.
Contributed by: Ed Pegg Jr (March 2011)
Modified by: Paul Abbbott
Open content licensed under CC BY-NC-SA
Wolfram Demonstrations Project
Published: March 7 2011