1. Audio and vibration engineers

2. Electrical engineers in electromagnetics, antennas and wireless

3. Engineering physics students

4. Geodetic scientists who map the earth's gravitational field

5. Mathematicians who wish to learn non-trivial mathematics which is central to physics and engineering

6. Mechanical engineers

7. Optical engineers

8. Physicists with a focus on electrodynamics and/or quantum mechanics

9. Workers who interface analogue with digital signals