"ChekAnal[Transf, s, r, w,showder]: Checks the analyticity of the transfer function Transf(s) at the point s=r+jw using Cauchy-Reimann conditions. If `showder=1' (optional) then the derivatives in the computation are shown. ";
PoleZeros::usage =
"PoleZeros[Transf, s]: Computes finite poles and zeros of the transfer function Transf . Returns {list of poles, list of zeros}.
";
Begin["`Private`"];
(* Function to check the analyticity of the transfer function *)