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Last Modified :Friday, 03-Feb-2006 19:58:49 JST ããããã¼ã¸ã¸ ä¹±ä¸, è½ä¸, ééãçã®ãææ㯠bond@alab.t.u-tokyo.ac.jpã¾ã§ãé¡ããããã¾ã. (åçï¼17/01/2004) (2çï¼3/02/2006) FFTW3 on Visual C++ 6.0 ã¨ããã¿ã¤ãã«ã§, FFTW3.0.1ãVisual c++ 6.0ã§ä½¿ãæ¹æ³ãçºãã¦ããã¾ã. ã¯ããã« FFTWã¨ã¯, ããªã¼ã§ä½¿ããéåç¨ã®é¢æ£ãã¼ãªã¨å¤æã®ããã®ï½ãµãã«ã¼ãã³ã®ãã¨ã§ã. ãã®ç¹å¾´ã¯, ãã³ãã¼ã®ã©ã¤ãã©ãªã«æ¯ã¹éè²ãªãé度ã§ãããã¨ã¨, å¤ãã®CPUã§ä½¿ãããã移æ¤æ§ã«åªãããã¨ãããããã¦ãã¾ã. ãã¦ã³ãã¼ã FFTWã® Downloadã® platform-specific binaries and notesãã,
ã¯ããã« FFT ã¨ã¯é¢æ£ãã¼ãªã¨å¤æã«é¢é£ããå¤æãé«éã«å®è¡ããä¸é£ã® è¨ç®æ¹æ³ã®ãã¨ã§ãï¼ããã§ã¯ï¼FFT ã®èãæ¹ã¨ãã®è¨è¨æ¹æ³ã«ã¤ãã¦ å ·ä½çãªããã°ã©ã ãç¨ãã¦ç¤ºãã¾ãï¼ããã¯ï¼FFT ã®ã©ã¤ãã©ãªã ä½æããã¨ãã®ã¡ã¢ããã¨ã«ãªã£ã¦ãã¾ãï¼å°éçãªèª¬æã¯æ¥µåé¿ããã®ã§ï¼ ã¨ã¬ã¬ã³ãã§ãªã説æã«ãªã£ã¦ããããããã¾ããï¼åºç¤ç¥èã¨ãã¦ï¼ è¤ç´ æ°ã®æ¼ç®è¦åã¨ãã¼ãªã¨å¤æãä½ãã¨ãããã¨ããç¥ã£ã¦ããã° ç解ã§ããã¨æãã¾ãï¼ã¾ãï¼æ°å¦ã®ç¥èãããç¨åº¦ãã æéãç¯ç´ãããæ¹ã¯ï¼ 1.2ç¯ã¨1.3ç¯ã®è¦ç´(pdf 53KB) ãä¸èªãã¦ããã ããã°éãç解ã§ããã¨æãã¾ãï¼ ç®æ¬¡ 1 FFT æ¦ç¥ 1.1 é¢æ£ Fourier å¤æ 1.1.1 DFT ã®å®ç¾© 1.1.2 DFT ã¨é常㮠Fourier å¤æ 1.1.3 DFT ã®æ§è³ª 1.2 Cooley-Tukey å FF
Copyright (c) 2003 Koichi OKADA ã¾ããåæ±èª¬ææ¸ãããèªã¿ãã ããã ã¯ããã« FFTW ã¨ã¯ FFTW ã¨ã¯ 1 次å ã¾ãã¯ãã以ä¸ã®æ¬¡å ã® ä»»æã®ãã¼ã¿ãµã¤ãºã«ã¤ã㦠DFT ãè¡ããã¨ã®ã§ãã C ã®ã©ã¤ãã©ãªã§ãã åä½ã§é«éãªã ãã§ãªã Multi Thread ã MPI ã«ã対å¿å¯è½ã§ãã 2003/04 ã« FFTW Version 3.0 ããªãªã¼ã¹ããã¾ããã SIMD support (SSE/SSE2/3DNow!/Altivec) ã追å ãããçãããããã¨ç¾å³ãããã§ãã ãã ã Version 2 以å㨠API ã«äºææ§ã¯ããã¾ããã ã¾ããMPI ã«é¢ãã¦ã¯ç¾ç¶(2003/07/01 æç¹ã«ããã¦) 3.0 ã§ã¯æªå®è£ ã®ããã§ãã ã©ã¤ã»ã³ã¹ FFTW ã®ã©ã¤ã»ã³ã¹ã¯ GPL ã§ãã å¾ã£ã¦ FF
Introduction FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST). We believe that FFTW, which is free software, should become the FFT library of choice for most applications. The latest official releas
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