POV-Ray: Newsgroups: povray.off-topic: DFT and FFT: Re: DFT and FFT

POV-Ray : Newsgroups : povray.off-topic : DFT and FFT : Re: DFT and FFT		Server Time 6 Sep 2024 17:22:38 EDT (-0400)

From: Darren New
Date: 19 Jan 2009 12:54:39
Message: <4974be5f$1@news.povray.org>

Invisible wrote:
> So... a rank-0 tensor is just a number, a rank-1 tensor is a 1D grid of 
> numbers, a rank-2 tensor is a 2D grid of numbers, and a rank-3 tensor 
> is... what? A 3D grid of numbers?
> 
> I guess that's simple enough. How how do you do arithmetic with them? ;-)

I think they actually have to be vectors, don't they? Not just pairs of numbers?

-- 
   Darren New, San Diego CA, USA (PST)
   Why is there a chainsaw in DOOM?
   There aren't any trees on Mars.

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