. "inverse Z-transform" . "Z domain" . . "time-shift" . "z-transform" . "z-plane" . "z domain" . "''Z''-domain" . . . "Linear constant-coefficient difference equation" . "linear constant-coefficient difference equation" . . . "linear constant coefficient" . . . . . "Z-transform" . . . "''Z''-transform's LCCD equation" . "''z''-plane" . . "Z-transformed" . . . "Z-transform" . "Z-space" . . "Z-Transform" . . "this example" . "Z-" . "Z plane" .