Plotting a time series e^(-at) cos((bt) u_s (t)) for two cases, first for a=3 and b=50, then for a=-3 and b=50.
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I have been trying to plot the time series (e^(-at)*cos(bt)*u_s(t))) for two cases, first for a=3 and b=50, then for a=-3 and b=50 . Plot both cases on the same plot. Let the vertical axis span from -6 to 6 and the horizontal axis from 0 to 1 seconds.
Please help me rewrite this code:
a1=3;
b1=50;
a2 = -3;
b2= 50;
f1 = exp^(-a1*t)*cos(b1*t)*u(t);
f2 = exp^(-a2*t)*cos(b2*t)*u(t);
ts1 = timeseries (f1,0:1);
ts2 = timeseries(f2,0:1);
ts1.Name = 'time series';
ylim(-6:6);
plot(ts1);
hold on
plot(ts2);
2 Comments
Dyuman Joshi
on 30 Sep 2023
An error occurs in this line -
ylim(-6:6);
From the documentation - "Specify limits as a two-element vector of the form [ymin ymax], where ymax is greater than ymin."
And you don't need to define the variables as timeseries object. Plot directly, as has been show below.
You can also use fplot
Answers (1)
KSSV
on 30 Sep 2023
clc; clear ;
a1=3;
b1=50;
a2 = -3;
b2= 50;
t = linspace(0,1) ;
f1 = exp(-a1*t).*cos(b1*t) ;
f2 = exp(-a2*t).*cos(b2*t);
plot(t,f1,'r');
hold on
plot(t,f2,'b');
ylim([-6 6])
legend('f1','f2')
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