# Newtons method a computer project

Find the approximation to six decimal places. Here are a couple of computations to make the point. An example of a function with one root, for which the derivative is not well behaved in the neighborhood of the root, is f.

However, his method differs substantially from the modern method given above: That is going to change in this section. It will usually quickly find an approximation to an equation.

Overshoot[ edit ] If the first derivative is not well behaved in the neighborhood of a particular root, the method may overshoot, and diverge from that root.

Newton may have derived his method from a similar but less precise method by Vieta. We will use this to get our initial guess.

But, in the absence of any intuition about where the zero might lie, a "guess and check" method might narrow the possibilities to a reasonably small interval by appealing to the intermediate value theorem.

The following example is a little silly but it makes the point about the method failing.

Sometimes it will take many iterations through the process to get to the desired accuracy and on occasion it can fail completely. Given that stopping condition we clearly need to go at least one step farther.

The closer to the zero, the better. That is where this application comes into play. Specifically, one should review the assumptions made in the proof. Now we repeat the whole process to find an even better approximation. Secondly, we do need to somehow get our hands on an initial approximation to the solution i.

As noted above the general rule of thumb in these cases is to take the initial approximation to be the midpoint of the interval. More details can be found in the analysis section below. One of the more common stopping points in the process is to continue until two successive approximations agree to a given number of decimal places.

Instead it means that we continue until two successive approximations agree to six decimal places. However, there are some difficulties with the method. Newton applies the method only to polynomials. Before working any examples we should address two issues.

Finally, Newton views the method as purely algebraic and makes no mention of the connection with calculus. How many times do we go through this process?

If your device is not in landscape mode many of the equations will run off the side of your device should be able to scroll to see them and some of the menu items will be cut off due to the narrow screen width.

This will not always be the case. For situations where the method fails to convergeit is because the assumptions made in this proof are not met.

In this section we are going to look at a method for approximating solutions to equations. This opened the way to the study of the theory of iterations of rational functions. We were however, given an interval in which to look.Explore Newtons method of root finding for several functions Use the zoom slider to see more detail at three different levels of zoom.

Wolfram Demonstrations Project. Explore Newton's method of root finding for several functions. Use the zoom slider to see more detail at three different levels of zoom. Newton's Method is an application of derivatives will allow us to approximate solutions to an equation.

There are many equations that cannot be solved directly and with this method we can get approximations to the solutions to many of those equations. Newton's method is an extremely powerful technique—in general the convergence is quadratic: as the method converges on the root, the difference between the root and the approximation is squared (the number of accurate digits roughly doubles) at each step.

However, there are some difficulties with the method. Newton's Method: A Computer Project Newton's Method is used to find the root of an equation provided that the function f[x] is equal to zero. Newton Method is an equation created before the days of calculators and was used to find approximate roots to numbers.

Cool Newton's Method applications submitted 5 years ago by biga Hey guys, im currently doing a project on Nonlinear Newtons Method and I need some cool real world applications or more general mathematical applications.

Feb 09,  · Homework Help: C++ programming, Newtons Method. Feb 9, #1. Jtenbroek. Do one step at a time like a computer on a separate line. jedishrfu, Feb 9, Share this great discussion with others via Reddit, Google+, Twitter, or Facebook.