How can I access the transfer function in time-constant-format using zpk transfer functions?

Hi everybody,

Matlab can display a transfer function in time-constant-format at the command window.

% Gs is a transfer funtion (tf-data)
Gs=tf([2],[1 6 5]);
% convert Gs to zpk-data
Gs=zpk(Gs);
%extract z,p,k
[z,p,k]=zpkdata(Gs);
% display Gs in time-constant-format
Gs=zpk(z,p,k,'DisplayFormat','time constant')

How can i access the displayed? E.g. as a string.

Thank you a lot in advance!

Kinds regards

Daniel

[Daniel]

Hi,

just in case someone else is interested:

outputstring=evalc(Gs);

It let you evaluate and capture the output string, if - and only if - you first defined Gs with the above named property "DisplayFormat". Nesting the functions is not possible.

Answer 1

[Sulaymon Eshkabilov]

z{1}, p{1}, k % show the values in the command window.