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**dford****Member**- Registered: 2013-12-06
- Posts: 4

7√ π ^3

Not sure how to type all the math stuff but basically..

7th root of pi to the 3rd.

I have no idea why, but this equation has been stuck in my head for months.

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,525

hi Don

Is this your dream?

Doesn't ring any bells for me but maybe you have stumbled upon a new and significant constant. Let's call it dford's constant.

The 'math stuff' is called Latex. Have a look at

http://www.mathisfunforum.com/viewtopic.php?id=4397

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**dford****Member**- Registered: 2013-12-06
- Posts: 4

Yep that was my dream. If it turns out to mean something I'd be happy.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,938

Hi dford;

Does that number come out of a problem you were working on?

To 14 decimal places the ancient Egyptians would represent that as:

**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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**Maiya****Member**- Registered: 2011-08-11
- Posts: 124

Hello everyone

why would anyone use such constant upto 14 decimal places........??

And what is that series called....??

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**Maiya****Member**- Registered: 2011-08-11
- Posts: 124

And just as dford i'm stuck with

e^(i*pi)+1=0.......

Does anyone know what is that supposed to mean........???

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi Maiya

That is just an equality that many people find intriguing because it connects 5 major constants in math: e,pi,i,1 and 0.

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: 102,938

And what is that series called....??

That is called an Egyptian 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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**Maiya****Member**- Registered: 2011-08-11
- Posts: 124

Hello anonimnstefy....

how did someone end up with such an equality??

I mean i've tried it many times but i never got that equation right........

I could never compute e^i......

And can anyone put some sense into that equation....

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,525

hi Maiya

It comes from complex number theory.

A number of the form

means it has an 'argument' of theta measured anticlockwise from the positive x axis.

Using this

http://en.wikipedia.org/wiki/Argand_diagram

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**Maiya****Member**- Registered: 2011-08-11
- Posts: 124

oh ya right.......exactly....

e^(i*pi)=cos(pi)+i sin(pi)....

why didn't i think of this before....

thank you bob....

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,525

link in edited post

B

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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