Clear Filters
Clear Filters

Info

This question is closed. Reopen it to edit or answer.

Can't seem to get the functions to graph properlly

1 view (last 30 days)
alpha = [-0.5 -1.2 -2.1]
beta = [8 5.3 2.5]
t = 0:0.5:5
e = 2.71828
y1 = (e.^(-((-.5).*t))).*sin(8.*t);
y2 = (e.^(-((alpha(2))).*t)).*sin(beta(2).*t);
y3 = (e.^(-((alpha(3))).*t)).*sin(beta(3).*t);
plot(t,y1)
hold on
plot(t,y2,'m','LineWidth',1)
hold on
plot(t,y3,'b','LineWidth',1)
xlabel('time [sec]')
ylabel('amplitude')
title('\sigma as a function of time')
legend('Case 1','Case 2', 'Case 3')
grid on
When I plot the equations it seems to ignore the sin function and gives me a single spike not sure where I went wrong.

Answers (1)

Kelly Kearney
Kelly Kearney on 28 Oct 2020
You've chosen a pretty coarse resolution for t. If you change it to something like
t = linspace(0,5,100);
do you get what you expect?

This question is closed.

Products


Release

R2020b

Community Treasure Hunt

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

Start Hunting!