how to plot a unit step function

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Below shows my convolution of two signals by hand. I want to know how to use MATLAB to plot y(t). Please and thank you. It is a unit step function.

Accepted Answer

Daniel kiracofe
Daniel kiracofe on 27 Nov 2016
Do you want to do this numerically or symbollically?
With the symbolic math toolbox, the heaviside() function is a unit step. https://www.mathworks.com/help/symbolic/heaviside.html
If you want to do it numerically, you'll need to create it yourself, but it's easy. First create a time vector. e.g. t=-2:0.001:2 then create a zero vector for u, and fill in as appropriate: u = zeros(1,length(t)); u(find(t>0)) = 1; As u here is a vector not a function, you'd have to create a separate vector for the shifted step u(t-1).

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