De Moivre's Theorem
This leads to the following result known as De Moivre's Theorem, which is crucial to calculating the powers zn of a complex number z:
Theorem
For any integer n, 
- syllogism
- Sylow's theorems
- Sylvester's equation
- Sym
- symbol
- symbolic logic
- symmetrical about a line
- symmetrical about a point
- symmetric design
- symmetric difference
- symmetric function
- symmetric group
- symmetric matrix
- symmetric relation
- symmetry
- symmetry group
- symplectic geometry
- symplectic group
- synthetic geometry
- systematic error
- systematic sampling
- system of particles
- systems analysis
- Système International d'Unités
- Szemerédi's theorem