How many quadratics factorise? Write down a quadratic. What is the probability that it factorises? Paging Prof. Dirichet...
Prize crossnumber, Issue 05 Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
Dear Dirichlet, Issue 05 Prof. Dirichlet tackles political arguments and werewolves in answering your personal problems
Which mathematical object are you? Are you feeling ideal? In your prime? Discover your inner mathematical object (plus handy term explainer).
You can find previous issues of Chalkdust