| [ sciEncE ] in KIDS 글 쓴 이(By): guest (Cerebrum) <jasmine.waisman.> 날 짜 (Date): 2001년 11월 13일 화요일 오전 09시 42분 53초 제 목(Title): Re: FFT에 관련된 궁금증.... if you are trying to fit data with a certain periodic function f(x) = f(x + p), where p is the period, you can still estimate p via a least squares estiamtion. :) Hint: Taylor expansion. I thought all physics students know about Hilbert space. the least squares estimation is the best approximation in a Hilbert space. |