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How do you use Euler anglas
In short, you don't use them much, since coordinates are mostly handled through Transforms, which Unity internally converts to Quaternions as it needs to.
Keep on Creating!
Justin of JustinTime Studios (http://unity3d.expert)
If you need to convert from Quaternion to Euler just use Quaternion.Euler().
You can get a Euler of the rotation using transform.eulerAngles().