**comp.graphics.algorithms**

## Subject: **Re: General flat-flat intersection**

> You might want to approach this is through Grassmann coordinates, not

> point-vector form. If you're familiar with Pluecker coordinates for

> lines, these just extend the same idea.

--xO--- snipped great stuff ---

I see.. although just conceptually. I spent these two days reading some

introductory stuff on Grassmann algebra and Clifford algebra. And boy,

I'm hooked:) Currently however, your solution goes out of my scope.

Studying these will most propably take time, so it is better left as an

exercise for me:) However, I'd appreciate if you (or someone) could

briefly comment on these questions that rised:

1) What is "Geometric algebra" and how it relates to Clifford algebra

and Grassmann algebra?

2) I am also reading on tensors at the moment. I have a feeling tensors

are somehow connected to the Clifford algebra. Is there a connection and

if there is, what is it?

Thanks.

--

Kalle Rutanen

http://kaba.hilvi.org

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