On 17-1-2010 21:42, Orchid XP v8 wrote:
> All these years, I thought the correct way to compute the cross product 
> of two vectors is
> 
>   x3 = y1 z2 - z1 y2
>   y3 = x1 z2 - z1 x2
>   z3 = x1 y2 - y1 x2
> 
> But, apparently, I was wrong. The correct way is in fact
> 
>   x3 = y1 z2 - z1 y2
>   y3 = z1 x2 - x1 z2
>   z3 = x1 y2 - y1 x2
> 

You should have caught that based on symmetry.

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