How can I plot cosine/sine wave with exponential function?

Hi all,

I have some rusty about plotting cosine/sine with exponential function, can someone help me with this function?

y(t)= -(1/2)cos(t)+(1/2)exp(-t)+(1/2)t*exp(-t)?

Thank you very much

Twinsen

Answer 1

[Bhaskar R]

Fs = 10000; % samples persecond
t = (0:1/Fs:1-(1/Fs)); % seconds
A  = 1/2; % amplitude
y = -A*cos(t)+A*exp(-t)+A*t.*exp(-t); % your equation
plot(t, y), xlabel('Samples '), ylabel('Amplitude');    % plot signal
grid on

Answer 2

[Avinash Kumar]

Fs = 10000; % samples persecond t = (0:1/Fs:1-(1/Fs)); % seconds A = 1/2; % amplitude y = -A*cos(t)+A*exp(-t)+A*t.*exp(-t); % your equation plot(t, y), xlabel('Samples '), ylabel('Amplitude'); % plot signal grid on