MATLAB: Numerical integration of a vector from limits 0 to Infinity

Question

Hi, I have a vector of data points,Y corresponding to a time vector 't'.

How do I integrate the vector 'Y' from the limits zero to infinity?

I know there is the 'trapz' command to integrate vectors, but how do I integrate it between these specific limits – 0 and Inf?

Please advise. Thank you in advance.

Answer 1

quadgk() can be used on infinite intervals provided that the function is does not oscillate too much.