Correlation (Geometric)
A point-to-line and line-to-point Transformation which transforms points 
into lines 
and lines 
into points
such that passes through Iff 
lies on .
- Heronian Triangle
- Heron's Formula
- Heron Triangle
- Herschel
- Herschfeld's Convergence Theorem
- Hessenberg Matrix
- Hesse's Theorem
- Hessian Covariant
- Hessian Determinant
- Heteroclinic Point
- Heterogeneous Numbers
- Heterological Paradox
- Heteroscedastic
- Heterosquare
- Heuman Lambda Function
- Heun's Differential Equation
- Heuristic
- Hexa
- Hexabolo
- Hexacontagon
- Hexacronic Icositetrahedron
- Hexad
- Hexadecagon
- Hexadecimal
- Hexaflexagon