How to plot temporal representations?

Hello everybody, i hope you and everyone here can help me in plotting temporal representations of x1(t), x21(t), x22(t) and x23(t)

This code :

N  = 1e3;   % Number of data points
T0 = pi;    % Can be any number
t = linspace(0, T0, N);  % time space with N data points
f0=1000; f1=2000; f2=2000;
x1 = sin(2*pi*f0*t)+sin(2*pi*f1*t)+sin(2*pi*f2*t);
T1 =2*pi;    % Can be any number
t1 = linspace(0, T1-pi/N, N);    % time space with N data points
x21 = sin(2*pi*f0*t1);
T2 = 3*pi;   % Can be any number
t2 = linspace(T1, T2-pi/N, N);   % time space with N data points
x22 = sin(2*pi*f1*t2);
T3 = inf;
t2 = linspace(T2, T3, N);
x23 = sin(2*pi*f2*t2);

Answer 1

[Vidhi Agarwal]

Hi @IsTun

After resolving some issues with given code, using “plot” function of MATLAB, you can plot the temporal representations of (x_1(t)), (x_{21}(t)), (x_{22}(t)), and (x_{23}(t)).

• Try setting “T3” to finite range so that it’s easy to plot the same.

T3 = 4*pi;  % Arbitrary finite endpoint for x23

• Avoid overwriting “t2” with new range and use a different variable name for third time range.

t3 = linspace(T2, T3-pi/N, N);  % Time vector for x23

• Ensure that all time ranges are consistent and make sense within the context of your problem.

The plot after resolving the issues will look like given below:

For better understanding of “plot” function refer to the following documentation:

• https://www.mathworks.com/help/matlab/ref/plot.html

Hope that helps!