z_transforms



On 2/14/09, Doug Stewart <dastew at sympatico.ca> wrote:

>  Thank You !!!!

I'm glad to hear it;s useful to you.

>  here is one example that needs a little polish :-)
>
>  with the "-"  in the exponential it doesn't work
>
>  (%i77) apply_z_transform (z_transform (a+b*(e^(-p*T))^(m) , m, z));

Did you mean to write %e^x or exp(x) instead of e^x ?
I think with the existing rules, it can be solved with %e^x or exp(x).
That said, it should work for anyway; I 'll try to add some rules
for that.

best

Robert