Formulas
- Supersymmetric gauge theory
- Support vector machine
- Surface energy
- Surface of revolution
- Surface tension
- Susceptance
- Sustainable growth rate
- Suurballe's algorithm
- Sylow theorems
- Sylvester's formula
- Symbolic method (combinatorics)
- Symmetric level-index arithmetic
- Symmetry in quantum mechanics
- Symplectic matrix
- Synchrotron radiation