Plot unit step function
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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
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.
3 个评论
Anurag Paul
2021-8-17
It works by using ‘logical indexing’, so that here, if ‘t’ is greater than 0, the logical comparison returns 1 for all values of ‘t’ greater than 0. When used in computations, the logical 1 becomes numerical 1, so the double function call is not necessary. - copied👆
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
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.
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