[Tutor] newton's sqrt formula

[Kent Johnson]

On Mon, Feb 2, 2009 at 6:50 PM, WM. <wferguson1 at socal.rr.com> wrote:

>        # Newton's formula
>        newguess = guess - (guess * guess - square) / (guess * 2)
>        guess = newguess

or
guess = (guess + square/guess)/2

Kent