Maths in a minute: Utility theoryA hundred pounds is a lot more to someone who's poor than to a millionaire. But how do you measure such differences? Utility theory has the answer.
Shining a light on COVID modellingThere have been accusations that the modelling projecting the course of the pandemic was too pessimistic. Are they justified?
The calculus of the complexCalculus has long been key to describing the world. Now fractional calculus is providing new ways of describing complex systems.
Maths in a minute: TopologyWhen you let go of the notions of distance, area, and angles, all you are left with is holes.
Knowing when to quitWhether you are a bird hunting caterpillars or a neuron processing information, the marginal value theorem helps you maximise your bang per buck.