Formulas
- Stable distribution
- Standard Model
- Standard RAID levels
- Standard enthalpy of formation
- Star
- Stars and bars (combinatorics)
- Statcoulomb
- State–action–reward–state–action
- Statically indeterminate
- Statistical model
- Statistical significance
- Steady state (chemistry)
- Steffensen's method
- Steiner chain
- Steiner tree problem