%-- 9/01/04  9:49 AM --%
V=[9;0], % Voltage vector
R=[6,-4;-4,14]
I=inv(R)*V
A=[-4,-4;2,-4]
B=[4;0]
C=[0,2]
sys1ss=ss(A,B,C,0)
step(sys1ss)
help step
who
whos
sys1tf=tf(sys1ss)
sys2=tf(5,[1,2,0])
p3=[1,0,4,0,7]
roots(p3)
x=[-5:0.1:5];
size(x)
x(1:10)
f=x.^3+2.*x-9;
figure(2)
plot(x,f)
ginput(1)
bode(sys2)