Sum of rectangle function

Hello, how can I create a sum of rectangles?

[Ameer Hamza]

What do you mean by sum of rectangles?

Answer 1

[Ameer Hamza]

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);

[Amir Delavari]

My task is to create a sum of rectangular pulse functions

[Ameer Hamza]

Can you show the mathematical formula for the function?

[Amir Delavari]

[Ameer Hamza]

How the rect() function is defined?

[Amir Delavari]

https://en.wikipedia.org/wiki/Rectangular_function