"Actuary/Former High School Math Teacher"
...As noted in Wikipedia: "Fields that use trigonometry or trigonometric functions include astronomy (especially for locating apparent positions of celestial objects, in which spherical trigonometry is essential) and hence navigation (on the oceans, in aircraft, and in space), music theory, acoustics, optics, analysis of financial markets, electronics,...
read more
Offering
10+ subjects, including statistics