Definition:Copunctal/Lines
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Definition
Three (or more) lines are copunctal if and only if there exists a point $P$ that lies on all the lines.
In this context, these lines may be understood as encompassing straight lines and plane curves.
Also see
- Results about copunctal lines can be found here.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): copunctal
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): copunctal