On 01/22/10 01:33, Invisible 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...)

	I fail to see why you'd need to know how to do matrix multiplication. 
Calculating determinants is a different procedure.

-- 
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