이번에도 링크;
Parseval's Theorem(Parseval's Formula)
http://mathworld.wolfram.com/ParsevalsTheorem.html
Poisson Sum Formula
http://mathworld.wolfram.com/PoissonSumFormula.html
Fast Fourier Transform(FFT)
http://mathworld.wolfram.com/FastFourierTransform.html
Fast Fourier Transform 때문에 머리 빠지겠다 ㅠㅠ
여튼 mathworld 쵝오~

