Thanks again CaptainBlack! In the case of ln(x) --- x is a variable depending upon the distance from the center that is 0<= x <= r. Where r is the radius of the circle. I want to find the average ln(x) over the whole area of the circle for example at the curcumferance ln(x) = ln(r) at the center ln(x) = ln(0)-undefined? How can I get the average ln(x) for the entire circle -- sorry for the misunderstanding and thanks for your help.
CaptainBlack! I am quite gratful for your help and satisfied with your answer; however, I have got the same question but the circle diplaced from the origin by a distance x. The center of the circle is displaced by a distance x from the origion where the this distance, x is larger than the radius of the circle.
Thanks for your reply! I am interested to find the average lan(x) in the circle. At any point inside the circle the function varies as lan(x) where x is the distance from the origin to any point in the circle. I want to find the average lan(x) inside the circle.[In the previous case we find the average lan(r) where the center of the circle is at the origin.]