need actual model in numerator,denominator form

tf({1 0;0 1},{[1 0 0 0],1;1,[1 0 0 0]})

Answer 1

[Star Strider]

You can get the numerator and denominator as:

sys = tf({1 0;0 1},{[1 0 0 0],1;1,[1 0 0 0]});
Num = sys.Numerator
Den = sys.Denominator

and the symbolic display with:

TransFcn = sys

producing:

TransFcn =
 
  From input 1 to output...
        1
   1:  ---
       s^3
 
   2:  0
 
  From input 2 to output...
   1:  0
 
        1
   2:  ---
       s^3
 
Continuous-time transfer function.