Error using odearguments (line 113),Error in ode45 (line 115)

Question

0 Stimmen

I try to use the ode45 function:

syms t 
M=diag([1 1 2]);
K=[18.463 -10.615 2.769;-10.615 10.154 -3.692;2.769 -3.692 1.615];
D=[0.1997   -0.0786    0.0125
 -0.0786    0.1335   -0.0524
  0.0125   -0.0524    0.0476];
A=[zeros(3) eye(3);-inv(M)*K -inv(M)*D];
t0=0;tf=30;
tspan=[t0 tf];
Y0=zeros(6,1);
[t,Y]=ode45(@func2,tspan,Y0);

I created the function:

function H=func2(t,Y)
A =[ 0 0 0 1.0000 0 0;0 0 0 0 1.0000 0;0 0 0 0 0 1.0000;
-18.4630 10.6150 -2.7690 -0.1997  0.0786 -0.0125;
 10.6150 -10.1540 3.6920  0.0786 -0.1335  0.0524;
 -1.3845  1.8460 -0.8075 -0.0063  0.0262 -0.0238];
syms q1 q2 q3 q4 q5 q6
syms T Po
Y=[q1; q2 ;q3; q4; q5; q6];
M=diag([1 1 2]);
T=11.607;
P=Po*mod(t/T,1);
F=[-P;0;P];
G=[0;0;0;inv(M)*F]
H=AA*Y+GG
end

And I then receive this error message:

Error using odearguments (line 113)
Inputs must be floats, namely single or double.
Error in ode45 (line 115)
  odearguments(FcnHandlesUsed, solver_name, ode, tspan, y0, options, varargin);
Error in Cauchy (line 15)
[t,Y]=ode45(@func2,tspan,Y0);