Radian
A unit of angular measure in which the Angle of an entire Circle is 
radians. There are therefore360° per radians, equal to 
or 57.29577951°/radian. A Right Angle is 
radians.
- Bicentric Quadrilateral
- Bichromatic Graph
- Bicollared
- Bi-Connected Component
- Bicorn
- Bicubic Spline
- Bicupola
- Bicuspid Curve
- Bicylinder
- Bidiakis Cube
- Bieberbach Conjecture
- Bienaymé-Chebyshev Inequality
- Bifoliate
- Bifolium
- Bifurcation
- Bifurcation Theory
- Bigraph
- Bigyrate Diminished Rhombicosidodecahedron
- Biharmonic Equation
- Biharmonic Operator
- Bijection
- Bilaplacian
- Bilinear
- Bilinear Basis
- Billiards