More from Chalkdust
Dear Dirichlet, Issue 21
Suits, sofas and sculptures punctuate the prof's postbag this issue
Top Ten: Matrices
The definitive chart of the best matrices
Closing the Gap
A review of Vicky Neale's new book about the quest to understand prime numbers.
Prize crossnumber, Issue 06
Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
A counterintuitive result in the theory of traffic flow
Additional roads do not imply faster travel times!
Fractograms
Hugh Duncan explores the hidden patterns of fractions