Re: 3D function

by renzresearch :: Rate this Message:

That means most of the function values are around 0, equal
amount of them are greater than 0 and less than 0. Less and
less are large positive, and the same amount of them are large
negative. I said the "function values" are symmetrically
distributed, not x, y, z. People use red and green nets in 3D
space to represent positive and negative contour surfaces,
respectively. Hope this clarifies a bit.

Zhong

---- Original message ----

>Date: Wed, 10 Jun 2009 22:34:38 +0200
>From: Hans-Bernhard Bröker <HBBroeker@...>
>Subject: Re: [Gnuplot-info] 3D function
>To: renz@...
>Cc: gnuplot-info@...
>
>Zhong Ren wrote:
>> Hi,
>>
>> I have a 3D function f(x, y, z) in form of a data file of 4
>> columns x, y, z, and f. The distribution of the function
>> value f is symmetrical around 0
>
>Symmetrical --- how? There are quite a number of symmetries

a 3D field
>can have.
>
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