Precession.mws Euler Equations of Motion for a Rigid Body Eulerian Angle Transformation Rotation Matrix Angular Velocity Vector in the Body Frame Rigid Body Equations — General Case Equations of Motion Clean up the third equation a bit Rigid Body Equations — Symmetric Top General Motion of a Symmetric Top Equations of Motion Conversion to a System of First-Order ODEs Force-Free Motion of a Symmetric Top Steady Precession Solution A Spinning Truncated Cone Embedded in a Pressure Field Conical Coordinates Radiation Pressure Torque Due to Radiation Pressure on the Cone Surface Radius Vector to Cone Surface Statement of the Torque Integral in the Conical Frame Partial Evaluation of the Torque Integral in the Conical Frame Conversion of the Torque Integral to the Body Frame Torque Due to Radiation Pressure on the Flattop Surface The Equations of Motion Torque Combinations Simplification of the Torque Combinations Equations of Motion Fast Spin Approximation 3D Plot of Precession Period Precession Null Numerical Plots Analytic save/restart