- #1
alpha01
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Homework Statement
using Newtons method with an initial estimate of x0=2, find the point where the graph f(x)=x3-x-2 crosses the x-axis
Homework Equations
xi+1 = xi - f(xi)/f'(xi)
The Attempt at a Solution
Using a function plotter, I know the answer should be around 1.52138... But how am i supposed to know how many repetitions of Newton's method is required to get x where y=0 (i.e the x-axis).