On Thursday, April 10, 2014 3:16:12 PM UTC-4, Tobias Knopp wrote: > > should be fairly easy to use fftpack which has single and double precision > and is ok from the license. >
I already have significantly better performance than FFTPACK in my pure-Julia FFT, as well as (in some ways [*]) significantly more functionality: support for arbitrary prime factors, support for arbitrary numeric types (e.g. already supports bigfloat, and would also work with future quad-precision types etc), and support for strided data and arbitrary multidimensional FFTs. And it requires about 1/3 as many lines of code compared to the corresponding portions of FFTPACK. See https://github.com/JuliaLang/julia/pull/6193 [*] currently missing real-data FFTs and DCTs/DSTs.
