z-transform and inverse z-transform in SageMath
I would like to know if there is a way to solve z-transforms and inverse z-transforms in SageMath. In MATLAB, one can use the functions ztrans and iztrans http://www.mathworks.com/help/symboli...
Thanks.
I looked for functions to solve z-transforms through Sage interfaces, but found none. Well, actually, I came across this: https://github.com/andrejv/maxima/tree/master/share/z_transform, which I have not been able to make work. Any suggestions?