Radius
The distance from the center of a Circle to its Perimeter, or from the center of a Sphereto its surface. The radius is equal to half the Diameter.
See also Bertrand's Problem, Circle, Circumference, Diameter, Extent, Inversion Radius,Kinney's Set, Pi, Radius of Convergence, Radius of Curvature, Radius (Graph), Radiusof Gyration, Radius of Torsion, Radius Vector, Sphere- Elongated Pentagonal Orthobicupola
- Elongated Pentagonal Orthobirotunda
- Elongated Pentagonal Orthocupolarotunda
- Elongated Pentagonal Pyramid
- Elongated Pentagonal Rotunda
- Elongated Pyramid
- Elongated Rotunda
- Elongated Square Cupola
- Elongated Square Dipyramid
- Elongated Square Gyrobicupola
- Elongated Square Pyramid
- Elongated Triangular Cupola
- Elongated Triangular Dipyramid
- Elongated Triangular Gyrobicupola
- Elongated Triangular Orthobicupola
- Elongated Triangular Pyramid
- Elsasser Function
- Wilson's Primality Test
- Wilson's Theorem
- Wilson's Theorem Corollary
- Wilson's Theorem (Gauss's Generalization)
- Winding Number (Contour)
- Winding Number (Map)
- Windmill
- Window Function