source code for the z transform

i am working on z transform and in matlab, an m-file, ztrans.m is available in the symbolic math toolbox. but i am unable to find the source code for that file. i would like to know in depth about the function. can anyone please help me in this regard

[Maitry Dumaswala]

Where can i get a source code for inverse system designs?

Answer 1

[Walter Roberson]

You will need to work for Mathworks to see the source. See the "careers" link at the mathworks.com site.