POV-Ray : Newsgroups : povray.off-topic : Understanding Fourier transform : Re: Understanding Fourier transform Server Time
29 Jul 2024 20:26:07 EDT (-0400)
  Re: Understanding Fourier transform  
From: Orchid XP v8
Date: 17 May 2011 14:57:27
Message: <4dd2c517$1@news.povray.org>
On 17/05/2011 05:39 PM, Darren New wrote:
> http://altdevblogaday.org/2011/05/17/understanding-the-fourier-transform/
>
> That makes sense.

Yeah, that's the way I'd visualise it too.

The way I saw the formula written down is that you take the input wave, 
multiply it by different sine and cosine waves, and average. Thinking 
about this, I figured that if you have an osciliscope where the 
displacement plane rotates instead of translating, you'd get flower 
patterns that are off-center only if the frequency you're testing for is 
present.

...which appears to be what this guy is saying.

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*


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