Spherical Symmetry
Let 
and 
be constant Vectors. Define
Then the average of
over a spherically symmetric surface or volume is
since
over the sphere.- Probability Inequality
- Probability Integral
- Probability Measure
- Probability Space
- Probable Error
- Probable Prime
- Problem
- Procedure
- Proclus' Axiom
- Procrustian Stretch
- Product
- Product Formula
- Product-Moment Coefficient of Correlation
- Product Neighborhood
- Product Rule
- Product Space
- Program
- Projection
- Projection Operator
- Projective Collineation
- Projective General Linear Group
- Projective General Orthogonal Group
- Projective General Unitary Group
- Projective Geometry
- Projective Plane