Challenge: implement and test eqn of motion with radiation reaction #3
Description
Need solving eqn of motion in B-field: 1) in simple uniform field, 2) in realistic field.
The existing Lorentz-force eqn of motion in Geant4 should give helix trajectory in (1) - learn how to output step details in fine detail. Motion in (2) should correspond to expected motion (from COMSOL for instance - streamline plot).
With advanced eqn of motion, (1) should give helix with decreasing radius. This with (2) is the target code feature required.