Index exceeds the number of array elements
1 view (last 30 days)
Show older comments
Enrico Robinson
on 20 Sep 2021
Commented: Enrico Robinson
on 20 Sep 2021
I have been given the task to create a vector f with 1000 values, logarithmic spaced. The smallest value for f must be 10; the biggest vale for f must be 100000. I have been provided a diagram of a circuit and the following transfer function, H f( ), applies:
f = logspace(10,100000,1000);
w = 2*pi*f
R = 10
L = R/2000*pi
C = 1/2000*pi*R
z1 = 1/1i*w*C
z2 = R + 1i*w*L
H(f) = (z2(f)/(z1(f) + z2(f)))
mod = abs(H(f))
semilogx(f,mod)
I am trying to make a plot of the modulus of the transfer function H f( ) as a function of f . The horizontal scale of the plot must be logarithmic.
The line of code that is giving the the error is H(f) = (z2(f)/(z1(f) + z2(f)))
Can someone please help me understand where im going wrong?
0 Comments
Accepted Answer
Sargondjani
on 20 Sep 2021
The argument in brackets should be an index number, so for example:
x = 1:10; %a 1 x 10 vector
for ix = 1:size(x,2);
f(ix) = x(ix)^2;
end
Which could be achieved also with .^
f = x.^2;
In your case f is the vector, and consequently all your other variables. To calculate H:
H = z2./(z1 + z2)
modH = abs(H)
More Answers (0)
See Also
Categories
Find more on Creating and Concatenating Matrices in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!