Re: using fourier transforms in mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg103790] Re: using fourier transforms in mathematica*From*: AES <siegman at stanford.edu>*Date*: Tue, 6 Oct 2009 08:00:53 -0400 (EDT)*Organization*: Stanford University*References*: <had9m9$aab$1@smc.vnet.net>

> Any help is highly appreciated. > > Carsten Carsten, if you're at CREOL you should be able to find any number of guys (and gals) there who are up to speed on doing beam and resonator calculations using FFTs. (And though that is surely the fastest and most efficient way to do such calculations, modern computers are so powerful that it's often easier to just convert Huygens integral into matrix form; evaluate the matrix (even if it's very large); and then just use matrix multiplication.)