[Bug 223429] math/nfft 3.3.2: Nonequispaced fast Fourier transform
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Sat Nov 4 16:07:25 UTC 2017
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223429
Bug ID: 223429
Summary: math/nfft 3.3.2: Nonequispaced fast Fourier transform
Product: Ports & Packages
Version: Latest
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: Individual Port(s)
Assignee: freebsd-ports-bugs at FreeBSD.org
Reporter: mike.d.ft402 at gmail.com
Created attachment 187728
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=187728&action=edit
math/nfft
/!\ At present this requres a patched libm to fix the missing cpow function:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221341
NFFT is a software library, written in C, for computing non-equispaced fast
Fourier transforms and related variations. It implements the following
transforms:
1. Non-equispaced fast Fourier transform (NFFT)
- forward transform (NFFT), i.e. frequency to time/space domain
- adjoint transform (adjoint NFFT), i.e. time/space to frequency domain
2. Generalisations
- to arbitrary nodes in time and frequency domain (NNFFT)
- to real-valued data, i.e. (co)sine transforms, (NFCT, NFST)
- to the sphere S^2 (NFSFT)
- to the rotation group (NFSOFT)
- to the hyperbolic cross (NSFFT)
3. Generalised inverse transformations based on iterative methods, e.g.
CGNR/CGNE
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