my function is
function xdot=func4(t,x)A=[0 1 0;0 0 1;-1 -2 -3]B=[0 0;0 1;1 0]C1=[0 1]'C2=[1 0 ;0 1]C3=[1 0]'
s=C1*x(1)+C2*[x(2);x(3)]+C3*x(1)^(3/4)u=[x(1);0]+[x(2)+x(3);-x(3)]-[0;3/5*x(2)*x(1)^-2/5]-[0 0.1;0.1 0]*s/norm(s)+[x(1);0]+[2*x(2)+2.9*x(3);-0.1*x(2)-x(3)]xdot=A*x+B*u end
and by using ode 45 it give me nan state plese help me
tspan=[0 8]x0=[0;-0.15;0.1][t,x]=ode45('func4',tspan,x0)
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