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- Sine-Gordon Equation
- Sine Integral
- Sines Law
- Sine-Tangent Theorem
- Singly Even Number
- Singular Homology
- Singularity
- Singular Point (Algebraic Curve)
- Singular Point (Differential Equation)
- Singular Point (Function)
- Singular Series
- Singular System
- Singular Value
- Singular Value Decomposition
- Sinh
- Sink (Directed Graph)
- Sink (Map)
- Sinusoidal Projection
- Sinusoidal Spiral
- Sinusoidal Spiral Inverse Curve
- Sinusoidal Spiral Pedal Curve
- Sister Celine's Method
- Site Percolation
- Siteswap
- Six-Color Theorem