a stabiliy error

[lahcene]

Dear Aleksei

thank you for the toolbox you provided us with.

I wanted to check the stability of my plant, but the isstablefunction didn’t work

this is the message I’ve got:

Error using intmax (line 40)
Invalid class name.

Error in gcd (line 47)
    if isa(b,'double') && (b > intmax(classin) || b < intmin(classin))

Error in fotf/comm_order (line 61)
            n=gcd(a1(1),a1(2));

Error in fotf/isstable (line 36)
    q = comm_order(G,'den');

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