A one-sided (singly infinite) Z-Transform,

This is the most common variety of Z-transform since it is essentially equivalent to a generating function,
and it what is usually meant by "the" Z-transform.
The unilateral -transform
is implemented in the Wolfram Language
as `ZTransform`[*a*,
*n*, *z*].

## See also

Bilateral Z-Transform,

Generating Function,

Z-Transform
## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Unilateral Z-Transform."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/UnilateralZ-Transform.html

## Subject classifications