Exact Trilinear Coordinates
The Trilinear Coordinates 
of a point 
relative to a Triangle are Proportionalto the directed distances 
from to the side lines (i.e, 
, 
, 
). Letting 
be the constant of proportionality,
where
is the Area of 
and 
, 
, and 
are the lengths of its sides. When thetrilinears are chosen so that 
, the coordinates are known as exact trilinear coordinates.See also Trilinear Coordinates- Hansen Chain
- Hansen Number
- Hansen's Problem
- Happy Number
- Harada-Norton Group
- Harary Graph
- Hard Hexagon Entropy Constant
- Hard Square Entropy Constant
- Hardy-Littlewood Conjectures
- Hardy-Littlewood Constants
- Hardy-Littlewood k-Tuple Conjecture
- Hardy-Littlewood Tauberian Theorem
- Hardy-Ramanujan Number
- Hardy-Ramanujan Theorem
- Hardy's Inequality
- Hardy's Rule
- Harmonic Addition Theorem
- Harmonic Analysis
- Harmonic Brick
- Harmonic Conjugate Function
- Harmonic Conjugate Points
- Harmonic Coordinates
- Harmonic Decomposition
- Harmonic Divisor Number
- Harmonic Equation