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I have some accelerometer vector data A (3d vectors x,y,z ) than I have normalized so I guess they are unit vectors. Now what I what to do is to 3d rotate them by another set of normalized accelerometer vector data B so I get a third set of vectors D.

I have tried a simple vector subtraction but this does not seem to work, so can you tell me please what math method I should be using for the please?

Is it Euler angles, Cartesian etc etc.

A method of how to do it would be wonderful, and I know this is not a programming forum but if anyone knows of some c/c++ source for this is would be great.

Many thanks IMK

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# 3d rotation of accelerometer vectors

Can you offer guidance or do you also need help?

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