Hello everyone, I have this question. Any help in appreciated. ^_^

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Refat Chowdhury
Refat Chowdhury 2017-3-11
评论： Image Analyst 2017-3-11
Building a square wave. It is defined as f(t) = {1 if 0 < t < T, -1 if –T < t < 0}.
a. Create a script that plots a single square wave. Label the graph.
b. Change the above script to include a train of square waves consisting of 4 squares pieces.

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Image Analyst
Image Analyst 2017-3-11
Try repmat() or repelem(), or use the square() function.
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Refat Chowdhury
Refat Chowdhury 2017-3-11
Hi. So are you saying for part b, I am going to use one of these functions?
Image Analyst
Image Analyst 2017-3-11
For part a, I'd use linspace to create T. Then I'd use ones() to create an array of 1's. Then I'd use indexing to set some of them to -1. Then I'd use plot(), title(), xlabel(), and ylabel() to make the plot.
For part b, I'd use repmat() to replicate the single pulse from part a.

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