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This project forked from biotrump/nufft

0.0 1.0 0.0 3.32 MB

nonuniform fft http://www.cims.nyu.edu/cmcl/nufft/nufft.html

License: Other

CMake 18.43% Shell 1.87% MATLAB 3.70% C 19.46% Python 1.57% Perl 0.35% Yacc 0.79% Objective-C 1.21% Fortran 52.48% C++ 0.14%

nufft's Introduction

This directory contains Fortran code for the 1D, 2D and 3D NUFFTs.

dirft*d.f contains direct evaluation schemes for verification/testing,
where * = 1,2,3

nufft*df90.f contains NUFFT routines of types 1,2,3 with dynamic F90 
workspace allocation.

nufft*df77.f contains NUFFT routines of types 1,2,3 with static F77 
workspace allocation in the calling (driver) routine.

next235.f contains a utility routine that finds a highly composite 
integer greater than a given number. 

dfftpack.f contains a double precision FFT package from Netlib.

nufft*d_demof77.f contains a sample driver routine for the F77
versions of the codes. 

nufft*d_demof90.f contains the analogous driver for the F90
versions of the codes.

------------------------------------------------------------------
Simply compile 

nufft*d_demof90.f nufft*df90.f dirft*d.f dfftpack.f next235.f

or

nufft*d_demof77.f nufft*df77.f dirft*d.f dfft.f next235.f


Release notes:
c
c  NUFFT 1.2 : Jan 20, 2009.
c              First external release.
c
c  NUFFT 1.3 : Nov 28, 2011.
c              Adjust parameters and constants for double/quad precision.
c              Add Matlab/Octave wrappers and mex files.
c
c  NUFFT 1.3.3 : Nov 8, 2014.
c              Mergerd into a single release for all dimensions
c              with minor fixes, documentation modification.
c

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