Replies to post #140663 on ajtj99's Market Pulse

[jdaasoc]

Briefly, the derivative, math function not financial, of 1/x as it goes to infinity does not go to zero so the 2 dimensional line that forms the surface of revolution creates an infinite surface area since there is no end to the end of the paint can.
However, if you determine the volume in three dimensions of that 1/x function, the volume calculation has the factor 1 over x squared which does go to zero as you approach infinity.



http://en.wikipedia.org/wiki/Surface_of_revolution

http://en.wikipedia.org/wiki/Gabriel%27s_Horn

PS spam email is out of control. I had 750 spam emails today.