title: Quaternions vs. Euler Angles
body: <p>Hi<br>
  What is the <strong>pros</strong> and <strong>cons</strong> of "<strong>Quaternions</strong>" and "<strong>Euler Angles</strong>" Method<br>
  - Which one is <strong>faster</strong>?<br>
  - Which one need less <strong>Computational Effort</strong>?<br>
  - which one is more <strong>accurate</strong>, (in <strong>round off error</strong>)?  </p>