Given the function:

When,

I know...

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- October 15th 2012, 10:48 AMalane1994Newton's Method
Given the function:

When,

I know...

- October 15th 2012, 10:59 AMMarkFLRe: Newton's Method
You will have:

Now, use the two identities:

and to simplify. - October 15th 2012, 11:02 AMalane1994Re: Newton's Method
Thanks, I think it was the ln's that threw me... I hate those things...

- October 15th 2012, 11:09 AMMarkFLRe: Newton's Method
I advise you to learn to love the natural log function, as you will get to know it well during your study of the calculus. (Nod)(Cool)

- October 15th 2012, 11:12 AMalane1994Re: Newton's Method
Could you give me an answer. I have plugged it in two different times and gotten.

-80.169265 and 23.752784.

I have to go to 6 decimal places. - October 15th 2012, 11:28 AMMarkFLRe: Newton's Method
I get:

- October 16th 2012, 05:49 AMalane1994Re: Newton's Method
When you put it into your calculator, do you put it in all at once? Or do you break it up into segments to put in your calculator. Because I plugged the same thing you have there and I got a different answer...

- October 16th 2012, 10:28 AMMarkFLRe: Newton's Method
I enter the entire expression. Exactly what are you entering?

- October 16th 2012, 10:42 AMalane1994Re: Newton's Method
I believe that it was just misplaced parentheses.