On Tue, 04 Dec 2001 08:37:14 -0500, Timothy R. Cook wrote:
> "Greg M. Johnson" wrote:
>> One may represent the three axes as they appear in povray with
>> one's right hand, but your coworkers and family members would
>> complain about you flipping them the bird.
> 
> ...actually I never understood why people even needed to
> represent the axes with their hand except for demonstrating
> to people who didn't know about them; I have no trouble
> picturing the axes in my head.

The "right hand rule" is most useful for visualizing which way a 
cross product (or, by extension, a rotation) goes.  If you can do that 
in your head, great, but many otherwise talented people can't.

-- 
plane{-z,-3normal{crackle scale.2#local a=5;#while(a)warp{repeat x flip x}rotate
z*60#local a=a-1;#end translate-9*x}pigment{rgb 1}}light_source{-9red 1rotate 60
*z}light_source{-9rgb y rotate-z*60}light_source{9-z*18rgb z}text{ttf"arial.ttf"
"RP".01,0translate-<.6,.4,.02>pigment{bozo}}light_source{-z*3rgb-.2}//Ron Parker

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