jeffies, I knew how to **approximate** a square root a long time ago. I also
knew how to calculate an accurate root since I was in early high school.

it seems to date you STILL don't know how to calc accurately, even after I
handed the formula to you.

While you're googling, try looking in the same site for Newton's Method.

"JAXAshby" wrote in message
...
here you go, dude. cube roots by hand

http://mathforum.org/library/drmath/view/52605.html

now, wanna tell us about 4th roots by hand? go ahead