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_h3 [[FFT]] | [[FFT2]] | [[FFT3]] | [[FFT4]] | [[FFT5]] | [[FFT6]] | [[FFT7]] | [[FFT8]] | [[FFT9]] | [[FFT10]] _img data/FFT.png _ul [[Fourier_series|https://en.m.wikipedia.org/wiki/Fourier_series]] _ul [[fourlisp|https://www.physik.uzh.ch/~psaha/mus/fourlisp.php]] _ul [[a-gentle-introduction-to-the-fft|http://www.earlevel.com/main/2002/08/31/a-gentle-introduction-to-the-fft/]] _ul [[enfin-une-explication-simple-de-la-fft|http://picatout-jd.blogspot.com/2013/02/enfin-une-explication-simple-de-la-fft.html]] _ul [[ritchievink: understanding-the-fourier-transform-by-example/|https://www.ritchievink.com/blog/2017/04/23/understanding-the-fourier-transform-by-example/]] _ul [[brilliant.org/wiki/discrete-fourier-transform|https://brilliant.org/wiki/discrete-fourier-transform/]] _ul [[brilliant.org/wiki/roots-of-unity/|https://brilliant.org/wiki/roots-of-unity/]] _ul [[Fourier series visualisation with d3.js|https://bl.ocks.org/jinroh/7524988]] and also in [[visu|data/visu.html]] _ul e{sup z} =e{sup x}e{sup iy} =e{sup x}(cosy+isiny), z=x+iy ([[ref|http://math.univ-lyon1.fr/capes/IMG/pdf/new.expo.pdf]]) _ul [[https://ccrma.stanford.edu/~jos/log/Introduction_DFT.html|https://ccrma.stanford.edu/~jos/log/Introduction_DFT.html]] _ul [[http://www.librow.com/|http://www.librow.com/articles/article-10]] _ul [[http://www.pierreaudibert.fr/tra/FFT.pdf|http://www.pierreaudibert.fr/tra/FFT.pdf]] _p See [[DFT]].
lambdaway v.20211111