Curvature Scalar
The curvature scalar is given by
where
is the Metric Tensor and 
is the Ricci Tensor.See also Curvature, Gaussian Curvature, Mean Curvature, Metric Tensor, Radius of Curvature,Ricci Tensor, Riemann-Christoffel Tensor- Transversal Design
- Transversal Line
- Transylvania Lottery
- Trapdoor Function
- Trapezium
- Trapezohedron
- Trapezoid
- Trapezoidal Hexecontahedron
- Trapezoidal Icositetrahedron
- Trapezoidal Rule
- Traveling Salesman Constants
- Traveling Salesman Problem
- Trawler Problem
- Trebly Magic Square
- Tredecillion
- Tree
- Tree-Planting Problem
- Tree Searching
- Trefoil Curve
- Trefoil Knot
- Trench Diggers' Constant
- Triabolo
- Triacontagon
- Triacontahedron
- Triad