How to integrate a vector for specifical formula

Hello community! I have a situation. I need to integrate a set of data saved in a vector. The formula i need to integrate is:

I have vector of time and Vs each with 900.000 elements. I really need help! Thank you!

[KSSV]

Read about trapz.

[Delly22]

I tried with trapz but it gives me just 1 number, not a vector. Time is a vector, Vs is a vector and i need to integer so i can plot it and to plot it i need to be a vector, not just a number.