Power Point
Triangle centers with Triangle Center Functions of the form 
are called 
th Power points. The 0th power point is the Incenter, withTriangle Center Function 
.
References
Groenman, J. T. and Eddy, R. H. ``Problem 858 and Solution.'' Crux Math. 10, 306-307, 1984. Kimberling, C. ``Problem 865.'' Crux Math. 10, 325-327, 1984. Kimberling, C. ``Central Points and Central Lines in the Plane of a Triangle.'' Math. Mag. 67, 163-187, 1994.
- Student's z-Distribution
- Study's Theorem
- Sturm Chain
- Sturm Function
- Sturmian Separation Theorem
- Sturmian Sequence
- Sturm-Liouville Equation
- Sturm-Liouville Theory
- Sturm Theorem
- Stäckel Determinant
- Stérmer Number
- Stöhr Sequence
- Subalgebra
- Subanalytic
- Subfactorial
- Subfield
- Subgraph
- Subgroup
- Sublime Number
- Submanifold
- Submatrix
- Subnormal
- Subordinate Norm
- Subscript
- Subsequence