Error using / Matrix dimensions must agree...

Below is my script:

clc;
clear;
clear all;

% plotting frequency-current graph according to variable frequency values
f=100:100:100000; % variable frequency values
V=3.536; % AC voltage source
L=33*10^-3; %inductor (henry)
C=47*10^-9; %capacitor (farad)
R=820; %resistor (ohm)

W=2*(pi)*f; % Angular frequency formula
XL=W*L; % inductor impedance
XC=1/(W*C); % capacitor impedance
Z=(2*R)+1i*(XL-XC); % total impedance

I=V/Z; % current

plot(f,I)

May I know why I keep getting this error and how can I fix?

Error using  / 
Matrix dimensions must agree.

Error in deney3_2 (line 14)
XC=1/(W*C); % capacitor impedance

Answer 1

[Fabio Freschi]

f is a vector, as well as W. So you must use the dotted version of the division (that is ./ that performs the operation elementwise). You may find more information here

https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html

clear;
clear all;
% plotting frequency-current graph according to variable frequency values
f=100:100:100000; % variable frequency values
V=3.536; % AC voltage source
L=33*10^-3; %inductor (henry)
C=47*10^-9; %capacitor (farad)
R=820; %resistor (ohm)
W=2*(pi)*f; % Angular frequency formula
XL=W*L; % inductor impedance
XC=1./(W*C); % capacitor impedance
Z=(2*R)+1i*(XL-XC); % total impedance
I=V./Z; % current
figure,plot(f,I)

Note that you are plotting only the real part, as noticed in the warning

[KSSV]

Read about element by element operations in MATLAB.