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[ Source: nfft  ]

Package: libnfft3-long2 (3.4.0~rc2-1 and others)

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Experimental package

Warning: This package is from the experimental distribution. That means it is likely unstable or buggy, and it may even cause data loss. Please be sure to consult the changelog and other possible documentation before using it.

library for computing non-uniform Fourier transforms (long-double precision)

NFFT3 is a software library written in C for computing nonequispaced fast Fourier and related transformations. In detail, NFFT3 implements:

1) The nonequispaced fast Fourier transform (NFFT)

   - the forward transform (NFFT)
   - the adjoint transform (adjoint NFFT)

2) Generalisations of the NFFT

   - to arbitrary knots in time and frequency domain (NNFFT)
   - to the sphere S^2 (NFSFT)
   - to the hyperbolic cross (NSFFT)
   - to real-valued data, i.e. (co)sine transforms, (NFCT, NFST)
   - to the rotation group (NFSOFT)

3) Generalised inverses based on iterative methods, e.g. CGNR, CGNE

4) Applications in

   - medical imaging
        (i) magnetic resonance imaging
       (ii) computerised tomography
   - summation schemes
         (i) fast Gauss transform (FGT)
        (ii) singular kernels
       (iii) zonal kernels
   - polar FFT, discrete Radon transform, ridgelet transform

This package provides the shared library compiled with long-double precision.

Other Packages Related to libnfft3-long2

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Download libnfft3-long2

Download for all available architectures
Architecture Version Package Size Installed Size Files
amd64 3.4.0~rc2-1 154.1 kB627.0 kB [list of files]
arm64 3.4.0~rc2-1 146.9 kB591.0 kB [list of files]
i386 3.4.0~rc2-1 152.6 kB595.0 kB [list of files]
mips64el 3.4.0~rc2-1 167.3 kB950.0 kB [list of files]
powerpcspe (unofficial port) 3.4.0~rc2-1 219.0 kB1,691.0 kB [list of files]
ppc64el 3.4.0~rc1-1 164.4 kB859.0 kB [list of files]
s390x 3.4.0~rc2-1 144.1 kB759.0 kB [list of files]
x32 (unofficial port) 3.4.0~rc2-1 158.6 kB623.0 kB [list of files]