Area-Preserving Map
A Map 
from 
to is Area-preserving if
for every subregion
of , where 
is the 
-D Measure of . A linear transformation isArea-preserving if its corresponding Determinant is equal to 1.See also Conformal Map, Symplectic Map- Orthocentric System
- Orthocupolarotunda
- Orthodrome
- Orthogonal Array
- Orthogonal Basis
- Orthogonal Circles
- Orthogonal Curves
- Orthogonal Functions
- Orthogonal Group
- Orthogonal Group Representations
- Orthogonality Condition
- Orthogonality Theorem
- Orthogonal Lines
- Orthogonal Matrix
- Orthogonal Polynomials
- Orthogonal Projection
- Orthogonal Rotation Group
- Orthogonal Tensors
- Orthogonal Transformation
- Orthogonal Vectors
- Orthographic Projection
- Orthologic
- Orthonormal Basis
- Orthonormal Functions
- Orthonormal Vectors