Prime
A symbol used to distinguish one quantity 
(``
prime'') from another related . Primes are mostcommonly used to denote transformed coordinates, conjugate points, and Derivatives.
- Triaugmented Truncated Dodecahedron
- Triaxial Ellipsoid
- Tribar
- Tribonacci Number
- Tribox
- Trichotomy Law
- Tricolorable
- Tricomi Function
- Tricuspoid
- Tricylinder
- Tridecagon
- Trident
- Trident of Descartes
- Trident of Newton
- Tridiagonal Matrix
- Tridiminished Icosahedron
- Tridiminished Rhombicosidodecahedron
- Tridyakis Icosahedron
- Trifolium
- Trigon
- Trigonal Dipyramid
- Trigonal Dodecahedron
- Trigonometric Functions
- Trigonometric Series
- Trigonometric Substitution