Fourier analysis and numerical methods have long played a pivotal role in the solution of differential equations across science and engineering. By decomposing complex functions into sums of ...

The Numerical Algorithms Group (NAG), a world leader in high quality computational software and high performance computing services to tens of thousands of users in major academies, Global 500 ...

Optical systems employ a rich array of physical effects which are described by well-understood equations. However, for all but the simplest devices these equations are typically too complex to permit ...