| Necromancer | Answered a question more than 60 days later with score of 5 or more. This badge can be awarded multiple times. |
Sjoerd C. de Vries earned this badge 3 times |
jan 28 at 2:04
How to plot planar graphs as such?
nov 30 at 23:17
How can I set an image to be the Notebook's background?
