any tool in Matlab that can help me explore the relation between position of poles and the response?

["lucy"]

Hi all,

I am looking for such a tool in Matlab that can use Graphic User
Interface to help me explore and understand the relation between
position of the poles and the response itself?

For example, for function f(t), the Fourier Transform F(w) can be
deemed as complex function F(z) when we change "omega" into variable
"z" and I want to examine how does the distance from the poles to real
axis, the distance from the poles to imaginary axis, and the distance
from the poles to the origin affect the behavior of f(t)?

Any general rules about these poles?

Thanks a lot!