How to integrate a vector?

I have equation like this.

E(x) =

and another one is like.

E(x) =

I don't have the function, rather i have x and y (y= f(x)) values.

How can i implement this two equation?

Answer 1

[Torsten]

Use "trapz".

Best wishes

Torsten.

[Mr. 206]

How to specify limit in trapz?

[Torsten]

The first and last vector entry are the lower and upper limit of integration.

Answer 2

[madhan ravi]

https://www.mathworks.com/help/matlab/ref/trapz.html#bual_zk-5