Sampling Function
The 1-D sampling function is given by
where
is the Dirac Delta Function. The 2-D version is
which can be weighted to
where
is a reliability weight, 
is a density weight (Weighting Function), and 
is a taper.See also Shah Function, Sinc Function- Imaginary Number
- Imaginary Part
- Imaginary Point
- Imaginary Quadratic Field
- Immanant
- Immersed Minimal Surface
- Immersion
- Impartial Game
- Implicit Function
- Implicit Function Theorem
- Implies
- Impossible Figure
- Impredicative
- Improper Integral
- Improper Node
- Improper Rotation
- Impulse Pair
- Impulse Symbol
- Inaccessible Cardinal
- Inaccessible Cardinals Axiom
- Inadmissible
- In-and-Out Curve
- Incenter
- Incenter-Excenter Circle
- Incidence Axioms