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Re: Surface Normal


Hello Rick,

have a look at the MathGroup Archive June 2001searching for:

"Matthias Bode normal vector"

I received many brillant answers and an excellent MATHEMATICA program by
David Park that draws beautiful normal vectors.

Best regards,

MATTHIAS BODE
Torres Sofer III, depto. 9 A
Pedro Borda #1072
esq. Ismael Vásquez
COCHABAMBA/BOLIVIA

CEL: +591-70 71 56 64
TEL/FAX: +591-4-4 53 34 17
LVSABA at HOTMAIL.COM


----- Original Message -----
From: <gouqizi.lvcha at gmail.com>
To: mathgroup at smc.vnet.net
Subject: [mg55180] [mg55167] Surface Normal


> Hi, All:
>
> If I have a surface in parametric form
>
> For example,
> x = (10 + 5cosv)cosu
> y = (10 + 5cosv)sinu
> z = 5sinv
>
> How can I quickly calculate its normal for any (u,v) by mathematica
>
> Rick
>
>


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