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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

I do not know the extent of it. I only know I miss him.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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bobbym wrote:

I am afraid that no math like that is ever mundane. There are several ways to do that and that makes it very interesting.

explain

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

You undoubtedly used the methods of ordinary algebra but there are many numerical ways to get the answer too.

I have to go cook, see you all later. Have a good day at school.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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Will you cook in Angela Style or Gangnam Style?

I know two ordinary algebra methods and one numerical method and also the CAS way and also the graphical way and also a brute force way, Newton Raphson, Midpoint attack if they count

*Last edited by Agnishom (2013-11-20 17:15:22)*

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

There are many ways to solve equations numerically. The interesting one here is doing x_0=... x_n=3+1/x_n-1. It can even be done on a scientific calculator.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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What use is the quadratic formula in our daily lives? Can we use it to unlock the secrets in the hearts of those we love?

-The Princess Diaries, Meg Cabot

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

bobbym style.

You can solve that also by converting to a continued fraction.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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O Rly?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

Yes really. Want to see how?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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Indeed

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

It is an idea your countryman was an expert on.

follow so far?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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Yes, the rest I can do

Is that correct? Now what?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

That is it, you understand the idea. To compute the answer what would you do?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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I would convert it back to a quadratic equation and use the quadratic formula.

I've always changed those continued things into a quadratic and then solved it, never tried the other way round

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

Supposing you left out that end 1 / x what would you get?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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3.33

We are doing convergants, right?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

Yes, and I have kaboobled it.

we leave out the x not the 1 / x so we compute

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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3.25

Okay, what happens after that?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

leaving out the x again we compute,

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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Where is that taking us to?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

To one of the roots of your equation of course.

Can you do that one or need me to?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

The process is pretty much what I described in #80.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

That is the same process. There are many iterative methods too.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

I kniw about Newton's method, the tangent method and the secant method.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,364

Those are methods that have names and use geometric ideas. They are very popular in books written by people whom never solved anything other than a book problem.

Did we cover any of Forman's ideas for iteration?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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