Darwin's Expansions
Series expansions of the Parabolic Cylinder Functions 
and 
. The formulas can befound in Abramowitz and Stegun (1972).
References
Abramowitz, M. and Stegun, C. A. (Eds.). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, pp. 689-690 and 694-695, 1972.
- Standard Space
- Standard Tori
- Stanley's Theorem
- Star
- Star Figure
- Star (Fixed Point)
- Star Fractal
- Star Graph
- Star Number
- Star of David
- Star of Goliath
- Star of Lakshmi
- Star Polygon
- Star Polyhedron
- Starr Rose
- State Space
- Stationary Point
- Stationary Tangent
- Stationary Value
- Statistic
- Statistical Test
- Statistics
- Staudt-Clausen Theorem
- Steenrod Algebra
- Steenrod-Eilenberg Axioms