Combinatorica`
Combinatorica`
PlanarQ
As of Version 10, most of the functionality of the Combinatorica package is built into the Wolfram System. »
PlanarQ[g]
yields True if graph 
is planar, meaning it can be drawn in the plane so no two edges cross.
Details and Options
- PlanarQ functionality is now available in the built-in Wolfram Language function PlanarGraphQ.
- To use PlanarQ, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
Examples
Basic Examples (2)
PlanarQ has been superseded by PlanarGraphQ:
Wolfram Research (2012), PlanarQ, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/PlanarQ.html.
Text
Wolfram Research (2012), PlanarQ, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/PlanarQ.html.
CMS
Wolfram Language. 2012. "PlanarQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/PlanarQ.html.
APA
Wolfram Language. (2012). PlanarQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Combinatorica/ref/PlanarQ.html