2  Transferfunction

pkg load ocontrol
pkg list ocontrol

Package Name  | Version | Installation directory
--------------+---------+-----------------------
    ocontrol *|  10.1.0 | .../share/octave/api-v57/packages/ocontrol-10.1.0

G = tf ([1], [1, 1]);
G

G =     num = 1
    den =

       1   1

    delay = 0
    tfnum =  1
    tfdash = ------
    tfden =  s + 1
    type = TF
    sampleTime = 0

bode(G);