We must start and end at one of the bottom points
More from Chalkdust
A daredevil’s disaster
Donovan Young goes round the bend exploring what happens when the loop-the-loop goes wrong
Can computers prove theorems?
And will we soon all be out of a job? Kevin Buzzard worries us all.
What is the point of intersection?
Elizabeth A Williams falls off a log
2018 Fields medal winners
Introducing the work that has won mathematics' most famous award
Taking the (mathematically) perfect picture at the Leaning Tower Of Pisa
Finding the best picture at the Leaning Tower of Pisa is all about the maths rather than the pose!
Switching sides in a matrix equation
Looking for a neat description of this useful matrix part-inverse