In graph theory, a loop is an edge that connects a vertex to itself. A simple graph contains no loops.
Find mobile application for free on the App Store
Leave the feedback on Combster or share your ideas
For the best experience download Combster app from the App store, it's free!
Check out the day's hand-picked entertainment trends, then tap for videos.
This site is not available in the landscape mode.
Please rotate your phone or install our app.