Sum of rectangle function

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Amir Delavari
Amir Delavari il 1 Nov 2020
Commentato: Amir Delavari il 2 Nov 2020
Hello, how can I create a sum of rectangles?

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Ameer Hamza
Ameer Hamza il 1 Nov 2020
If by "sum of rectangles" you mean Riemann sum approximation of integral using rectangles, then use cumsum(): https://www.mathworks.com/help/matlab/ref/cumsum.html. For example
t = 0:0.1:10;
y = t.^2;
I = cumsum(y).*gradient(t);
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Ameer Hamza
Ameer Hamza il 2 Nov 2020
How the rect() function is defined?

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