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                                      Michael Lee's Mathematics and Physics

The Main Mathematics page.  History of mathematics, both classical and contemporary thought.

 Derivation of the formulas for surface areas of  various Tori.  (Torus singular)

Derivation of the formulas for the surface areas of  Spheres and Domes.

Derivation of the formula for the volume of a torus and its frustums.

Derivation of the formula for the area of a circular segment.

Derivation of the double angle formulas.