Invisible <voi### [at] devnull> wrote:
> Neeum Zawan wrote:

> > Oh dear. Use the determinant form - easiest to remember:
> > 
> > http://en.wikipedia.org/wiki/Cross_product#Matrix_notation

> ...except that then I'd have to somehow remember the correct way to do 
> matrix multiplication. (Something which I never get right with more than 
> 50% probability...)

  Then you just end up using left-handed coordinates for your cross product
rather than right-handed. In other words, it only affects the sign of the
result.

-- 
                                                          - Warp

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