Cross-Correlation Theorem
Let 
denote the Cross-Correlation of functions 
and 
. Then
 | |
 | |
 | |
 | |
 | |
 | |
 | (1) |
where 
denotes the Fourier Transform and
 | (2) |
 | (3) |
 | (4) |
, then the cross-correlation theorem reduces to the Wiener-Khintchine Theorem.See also Fourier Transform, Wiener-Khintchine Theorem- R+
- Raabe's Test
- Rabbit Constant
- Rabbit-Duck Illusion
- Rabbit Sequence
- Rabdology
- Rabin-Miller Strong Pseudoprime Test
- Rabinovich-Fabrikant Equation
- Racah V-Coefficient
- Racah W-Coefficient
- Radau Quadrature
- Rademacher Function
- Radial Curve
- Radial Point
- Radian
- Radiant Point
- Radical
- Radical Axis
- Radical Center
- Radical Integer
- Radical Line
- Radicand
- Radius
- Radius (Graph)
- Radius of Convergence