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From: Andy Little (andy_at_[hidden])
Date: 2006-06-10 18:48:12

"Carlo Wood" <carlo_at_[hidden]> wrote in message
> On Sat, Jun 10, 2006 at 05:58:35PM +0100, Andy Little wrote:
>> > I don't like the separation of "three_d" and "two_d" - where quaternions
>> > should
>> > be put then - "four_d" ?
>> My rationale is that quaternions exist in a 3D
>> space. OTOH complex would be in two_d because it exists in a 2D space.
> quaternions are 4D (1, i, j, k), where complex is 2D (1, i).

OK, but they are define a rotation in 3D space, do they not ?

Andy Little

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