Plotting cycles of signal

Hi, I am relatively unexperienced with MATLAB but how do i plot any number of cycles of the following signal;

z(t) = 0 if − π ≤ t < 0

3 if 0 ≤ t ≤ π

Answer 1

[Raunak Gupta]

Hi,

For plotting the function mentioned in the question you may use square wave as it will replicate your requirements. I have written an example below which plots the function in range [-16π,16π]. You may find it helpful.

% This particular t will plot 16 cycles 
% t can be changed accordingly for plotting particular number of cycles  
t = -16*pi:0.02:16*pi; 
x = 3*square(t); % Period of the wave is 2*pi
x = x.*(x>=0); % converting negative cycle to zero as per function requirement 
plot(t/pi,x); % Plotting t/pi for better understanding  
xticks(-16:16); 
xlabel('t / \pi') 
ylim([-1,4]); 
xlim([-17,17]);