Math Is Fun Forum

dford

Member

Registered: 2013-12-06

Posts: 4

I'm not sure why but I dreamed about this equation

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.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,621

Re: I'm not sure why but I dreamed about this equation

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
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

dford

Member

Registered: 2013-12-06

Posts: 4

Re: I'm not sure why but I dreamed about this equation

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: I'm not sure why but I dreamed about this equation

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Maiya

Member

Registered: 2011-08-11

Posts: 124

Re: I'm not sure why but I dreamed about this equation

Hello everyone
why would anyone use such constant upto 14 decimal places........??
And what is that series called....??

Maiya

Member

Registered: 2011-08-11

Posts: 124

Re: I'm not sure why but I dreamed about this equation

And just as dford i'm stuck with
e^(i*pi)+1=0.......
Does anyone know what is that supposed to mean........???

anonimnystefy

Real Member

From: Harlan's World

Registered: 2011-05-23

Posts: 16,049

Re: I'm not sure why but I dreamed about this equation

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.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: I'm not sure why but I dreamed about this equation

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Maiya

Member

Registered: 2011-08-11

Posts: 124

Re: I'm not sure why but I dreamed about this equation

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....

Bob

Administrator

Registered: 2010-06-20

Posts: 10,621

Re: I'm not sure why but I dreamed about this equation

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
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

Maiya

Member

Registered: 2011-08-11

Posts: 124

Re: I'm not sure why but I dreamed about this equation

oh ya right.......exactly....
e^(i*pi)=cos(pi)+i sin(pi)....
why didn't i think of this before....
thank you bob....

Bob

Administrator

Registered: 2010-06-20

Posts: 10,621

Re: I'm not sure why but I dreamed about this equation

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
Sometimes I deliberately make mistakes, just to test you!  …………….Bob