Mathematics Researcher. Main interests:

• physics based animation (deformable objects, kinematics)
• mathematics of CG applications (simulation, games, etc.)
• shader programming
• discrete differential geometry (manifold properties)
• robotics

While you're here, please stop saying these two things

• quaternions avoid gimbal lock
• premature optimization

why?

• gimbal lock is related to a mechanism, quaternions are just an algebraic/geometric description of an angle-axis rotation. So they do not avoid it since the mechanism itself cannot.
• if it's an optimization, if it's common sense, just implement it! Better do it now, than to look for it desperately later.