# Math Help - Numerical integration!!!

1. ## Numerical integration!!!

Hi all,

I have a question which might sound silly to some of you (so I apologise in advance).

I have a complicated function which I have evaluated numerically using Matlab.

What information can I take out of this numerical integration? How can I use the outcome of a numerical integration to plot graphs etc?

I know why we use numerical integration. I am trying to understand how can I use the result to draw conclusions about my function.

Thanks

Regards

Alex

2. Originally Posted by tecne
Hi all,

I have a question which might sound silly to some of you (so I apologise in advance).

I have a complicated function which I have evaluated numerically using Matlab.

What information can I take out of this numerical integration? How can I use the outcome of a numerical integration to plot graphs etc?

I know why we use numerical integration. I am trying to understand how can I use the result to draw conclusions about my function.

Thanks

Regards

Alex
In order to do a graph of an integral what you would be doing is something like this: Plot the series of points $\left ( x, \int_0^x f(y) dy \right )$ for several (that is to say a large number) of x values.

-Dan