Complex One-Dimensional DFTs - FFTW@wikiプランã¨ã¯ã€å¶ç„¶ã®çµæžœã‚’é”æˆã™ã‚‹ãŸã‚ã®æœ€å–„ã®æ–¹æ³•ã‚’ã„ã‚ã„ã‚æ€ã„æ‚©ã‚€ã“ã¨ã§ã‚る。 (Ambrose Bierce, The Enlarged Devil’s Dictionary.) #include <fftw3.h> ... { fftw_complex *in, *out; fftw_plan p; ... in = (fftw_complex*) fftw_malloc(sizeof(fftw_complex) * N); out = (fftw_complex*) fftw_malloc(sizeof(fftw_complex) * N); p = fftw_plan_dft_1d(N, in, out, FFTW_FORWARD, FFTW_ESTIMATE); ... fftw_execute(p); /* å¿…è¦ãªã ã‘繰り返㙠*/ ... fftw_destroy_plan(
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