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- From: torb@stud.cs.uit.no (Tor Berger)
- Newsgroups: sci.math
- Subject: Re: What is the 'sinc' function?
- Keywords: sinc
- Message-ID: <1993Jan12.144029.2784@news.uit.no>
- Date: 12 Jan 93 14:40:29 GMT
- References: <1itehhINN8v1@roundup.crhc.uiuc.edu> <1993Jan12.093439.27666@cv.ruu.nl>
- Sender: news@news.uit.no (USENET News System)
- Organization: University of Tromsoe, Norway
- Lines: 18
-
- In article <1993Jan12.093439.27666@cv.ruu.nl>, ger@cv.ruu.nl (Ger Timmens) writes:
- |> In <1itehhINN8v1@roundup.crhc.uiuc.edu> hougen@focus.csl.uiuc.edu (Darrell Roy Hougen) writes:
- |>
- |> >I came accross it in a paper about the scattering of electromagnetic
- |> >radiation.
- |>
- |> sin(Pi * x)
- |> sinc(x) = -----------,
- |> (Pi * x)
- |>
- |> So it's 0 at {...,-2,-1,0,1,2,...}. It's the Fourier transform of an ideal
- |> lowpass filter. ^
-
- sinc(0) = 1 (not 0)
-
- ---
-
- Tor
-