Gauss flux theorem
where G is the gravitational constant, S denotes surface area and n is the outward-pointing unit normal. An equivalent differential version reads
where 
denotes density. There are similar theorems relating electric and magnetic fields, the differential forms of which appear as two of Maxwell's equations.
- trial
- trial and improvement
- triangle
- triangle inequality
- triangle of forces
- triangularizable
- triangular matrix
- triangular number
- triangulation
- triangulation
- tridiagonal matrix
- trigonometric function
- trigonometric series expansions
- trigonometric tables
- trigonometry
- trillion
- trim
- trinomial
- triple
- triple product
- triple root
- trisect
- trisection of an angle
- trisector
- trivial