POV-Ray : Newsgroups : povray.general : Vector functions AAARRRRGGHH!!!!! : Re: Vector functions AAARRRRGGHH!!!!! Server Time
5 Aug 2024 02:19:37 EDT (-0400)
  Re: Vector functions AAARRRRGGHH!!!!!  
From: ABX
Date: 19 Dec 2002 13:36:05
Message: <mv340vkqp3bcievj7j1d7f75b01ic978gi@4ax.com>
On Thu, 19 Dec 2002 13:20:19 EST, "gonzo" <rgo### [at] lansetcom> wrote:
> 1. what's a cross product?

http://mathworld.wolfram.com/CrossProduct.html

> 2. what's a parallelogram?

http://mathworld.wolfram.com/Parallelogram.html

> 3. AxB = |A| * |B| * sin(angle(A,B)) * perpendicular_unit_vector(A,B)????

I nearly thought you are asking about ABX. This nearly the same question ad
first.

> 4. what's a sine?

http://mathworld.wolfram.com/Sine.html

> 5. If a vector is just point in space, how can it have length & direction?

If you are in the center of space and you want move yourself to that
vector/point you have to move yourself about some _length_ in some _direction_

You can follow links in mathworld if you don't understand terms listed there.

ABX


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