MATLAB: Using a Jocobi Matrix in a State-space model

Question

So i am trying to linearize a System using a Jakobi Matrix. The linearization works fine but when i try to use the results with sys = ss(A,B,C,D) the Matrix A as well as the Vektor C seem not to be the right type or rather form.

This is how the Matrix looks like

A =
 
[      0,  1]
[ -3/100, -1]

And this is how it should look like

A =
   -0.1250         0
    0.1250   -0.1250

witch results in this Error Message

    Error using ss (line 274)
The value of the "a" property must be a numeric array without any Inf's or NaN's.
Error in Aufgabe_2 (line 20)
sys = ss(A, b, cT, d);

Any suggestions on how to change the Matrix around?

Answer 1

Convert A to floating-point type before passing to ss()

sys = ss(double(A), b, cT, d);