Cutting Edge intro: maths versus machine

Banks can use maths - rather than special chips - to boost computing speed


Four years on from the article that first popularised it, adjoint algorithmic differentiation (AAD) has not changed the world, but its growing fanbase believes it could (Risk March 2010). Instead of investing in ever-more-specialised hardware to deliver much-needed increases in computational speed, AAD gets users to the same place via a mathematical technique – and adherents say the breadth of its potential applications is becoming clearer. "AAD is not only a math trick to turbocharge y