# how can I plot a unit step function?

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Seba.V on 22 Aug 2019
How can i plot a unit step function or a piecewise function in Matlab?
ie:
h(t)=u(t-2)-u(t-4)?
or another example:
h(t)={0 for t<0, 1 for 2<t<3, 0 for t>3
Also, how can i plot a periodic square wave with thresholds in matlab?
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Seba.V on 22 Aug 2019
t=0:0.001:4;
h=(t-2)-(t-4);
subplot(2,1,1)
plot(t,h)
Sorry, yes I am very new to it and just starting out. Dont want to bother you, just seeking advice that can make me underdatand, and yes i have very little idea to even where to begin and if you have any good books or any resources for beginners in signal processing and general MatLab functioning, or even on some fundamental coding techniques needed to suggest, it would be greatly appreciated.
heaviside was what I was looking for!

Star Strider on 22 Aug 2019
The unit step function is also knoiwn as the heaviside step function.

This is my proposal, I hope it helps you:
u = @(t) double(t>=0);
h = @(t) u(t-2)-u(t-4);
fplot(h,[0,5])