Problem with discrete state space equation

hello guys, so i have problem with state space model where the value of element matrix phi and gamma between blue circle and red circle are different.

this is my code

Cf = 20e-6;
Rf = 0.022;
Lf = 4e-3;
Ts = 10e-6;

Ai = [0 1/Cf; -1/Lf -Rf/Lf];
Bi = [0 1/Cf; 1/Lf 0];
Ii = [1 0;0 1];
phi = exp(Ts*Ai);
gamma = inv(Ai)*(J - Ii)*Bi;

p = sqrt(Lf/Cf);
q = Ts/(sqrt(Lf*Cf));
p11 = cos(q);
p12 = p*sin(q);
p21 = (1/p)*sin(q);
p22 = cos(q);
g11 = 1-cos(q);
g12 = p*sin(q);
g21 = (1/p)*sin(q);
g22 = 1-cos(q);

phi1 = [p11 p12; p21 p22];
gamma1 = [g11 g12; g21 g22];

Answer 1

[darova]

Use expm() for matrix exponent (exp() ony returns exponent of each element in matrix):

phi = expm(Ts*Ai);
gamma = inv(Ai)*(phi - Ii)*Bi;

[Trio Pamungkas]

wow thanks sir, its working now