# Z transform definition

LaTeX Code:

X(z) \buildrel \Delta \over = \sum\limits_{n = - \infty }^\infty {x(n)z^{ - n} }

MathType 5.0 Code:

% MathType!MTEF!2!1!+-
% feaafaart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn
% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr
% 4rNCHbGeaGqiVCI8FfYJH8YrFfeuY-Hhbbf9v8qqaqFr0xc9pk0xbb
% a9q8WqFfeaY-biLkVcLq-JHqpepeea0-as0Fb9pgeaYRXxe9vr0-vr
% GH9aqpcqGHsislcqGHEisPaeaacqGHEisPa0GaeyyeIuoaaaa!48B8!

Pasting the above "text" into MathType 5.0 will enter the above equation and make it possible to edit, save, and use in applications such as MS Word.