Plot unit step function

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Corinne Dale
Corinne Dale 2018-10-3
评论： Star Strider 2023-9-19
I'm trying to plot the signal u(t)-u(t-1) without heaviside in MATLAB. I've tried to use the if loop but couldn't figure it out.

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Star Strider
Star Strider 2018-10-3
You can use a ‘logical indexing’ approach:
ustp = @(t) +(t>0); % Simple Unit Step Function
t = linspace(-5, 5);
figure
plot(t, ustp(t)-ustp(t-1))
grid
I will let you figure out how it works.
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Vicky
Vicky 2023-9-19
Can you explain how you wrote "@(t) +(t>0)"? It worked perfectly but I'm unsure what the @ is doing here. Thank you so much!
Star Strider
Star Strider 2023-9-19
@Vicky — That is an anonymous function. It works the same way other functions do, and can be called similarly. The ‘@’ creates its function handle.
See the documentation on Anonymous Functions and What is a Function Handle? for details.

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