Clear Filters
Clear Filters

generate a sine wave that ends at 0

11 views (last 30 days)
Hello everyone,
As the title says, i'm trying to generate a sine wave that ends at 0. I have this problem when i try to generate a signal with a frquency higher than 1, the signal does not stop at 0.
I use the following code for the sine wave:-
t = 0 : 1/Fs : t1-1/Fs;
is there any way to make the signal stops at 0? even if that means that the signal moves past the 5000 points.
Steven Lord
Steven Lord on 5 Apr 2022
One suggestion: the sinpi function may be of interest to you.
Sam Chak
Sam Chak on 5 Apr 2022
Wow, I don't know the existence of this function (Introduced in R2018b).
Thank you @Steven Lord.

Sign in to comment.

Accepted Answer

Sam Chak
Sam Chak on 5 Apr 2022
Edited: Sam Chak on 5 Apr 2022
Are you trying to make the Sine wave to hit 0 at the end of the simulation?
f = 159.2; % frequency
Fs = 35*f;
desired_Tend = 1;
n = round(f*desired_Tend);
T = 1/f; % period
t = 0:1/Fs:n*T;
A = 0.1; % amplitude
x = A*sin(2*pi*f*t);
plot(t, x, 'linewidth', 1.5)
axis([0.99 1 min(x) max(x)])
grid on
title('Sine Wave')
Ali Albaidhani
Ali Albaidhani on 5 Apr 2022
thank you sam for your answer.
I just have a problem with n.
How do i calculate it and what if i want a signal that is longer than 1 sec?
Sam Chak
Sam Chak on 5 Apr 2022
I have edited the script in the Answer. This allows you to compute the nearest integer.
desired_Tend = 2;
n = round(f*desired_Tend); % calculate the nearest integer

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!