Plotting a stem plot of a Fourier series

Here is my code:

% Plot amplitude vs frequencey

n = 0:15;

f = f0*n;

A = abs((8*10) ./ (pi^2) .* (1./n) .* cos(n.*w.*t));

figure

stem(f, A)

grid

xlabel('Frequency in Hz')

ylabel('Amplitude in Volts')

title('Signal Amplitude vs frequency ')

I keep on getting the error "Matrix dimesons must agree."

f0 is the funamental frequencey defined earlier in the code, it is 1e3 (aka 1kHZ).

t has also been predefined as t = linspace(0,3*T,1000);

T is the peroid, 1/f0 = 300ms.

Answer 1

[Star Strider]

Supply the correct values for ‘f0’, ‘w’ and ‘t’, and it works —

% Plot amplitude vs frequencey 
f0 = 1;
w = 2*pi*f0;
n = 0:15;
t = n;
f = f0*n;
A = abs((8*10) ./ (pi^2) .* (1./n) .* cos(n.*w.*t));
figure
stem(f, A)
grid
xlabel('Frequency in Hz')
ylabel('Amplitude in Volts')
title('Signal Amplitude  vs frequency ')

I created some values for them here. Provide the correct ones.

.

[OvercookedRamen]

Thanks big dog, I owe you.

[Star Strider]

As always, my pleasure!

(I’m a polar bear, actually. That was more obvious when the thumbnails were square.)

.

[OvercookedRamen]

*Hands you a Coca-Cola *

[Star Strider]

:-)