(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Write the matrix of a rotation tensor corresponding to the rotation by angle θ about an axis aligned with e1+e2

2. Relevant equations

I know that the matrix for a rotation tensor about e3 is;

cosθ -sinθ 0

sinθ cosθ 0

0 0 0

3. The attempt at a solution

I assume that the rotation would be changing only on the e3 axis because the axis are aligned with e1+e2, right? So the matrix will be all zero with the R33 component being some complicated rotated value?

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# Homework Help: Matrix of a Rotation Tensor

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