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- Banach Space
- Banach-Steinhaus Theorem
- Banach-Tarski Paradox
- Bang's Theorem
- Bankoff Circle
- Banzhaf Power Index
- Barber Paradox
- Barbier's Theorem
- Bare Angle Center
- Bar (Edge)
- Barnes G-Function
- Barnes' Lemma
- Barnes-Wall Lattice
- Barnsley's Fern
- Bar Polyhex
- Bar Polyiamond
- Barrier
- Barth Decic
- Barth Sextic
- Bartlett Function
- Barycentric Coordinates
- Baseball
- Baseball Cover
- Base Curve
- Base (Logarithm)