what does represent quaternions addition?

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luzop 101 Mar 05, 2004 at 18:48

I know that if q1 and q2 indicate rotations, then q2q1
represents the composite rotation of q1 followed by q2.

but what about addition?

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Noor 101 Mar 05, 2004 at 20:21

I believe quaternion addition is similar to vector space translation (in 4D), but have no geometric meaning.

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davepermen 101 Mar 15, 2004 at 15:27

depends on what you use the quaternions for. quaternions with only imaginary part can be used to represent vectors, and then, quaternion addition results in vector concatenation, a.k.a. translation.

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luzop 101 Apr 24, 2004 at 06:16

Thanks