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## #1 2012-12-17 01:54:25

Fistfiz
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### tau=2*pi

http://tauday.com/tau-manifesto

To be brief, the "tauists", as they call themselves, argue that the constant pi should be replaced with tau=2*pi, which is much more natural.

I have to say that, to me, the manifesto was really convincing; as i see it, the use of tau instead of pi brings clarity and coherence with other formulas (for example area of a circular sector).

What do you think about it?

30+2=28 (Mom's identity)

## #2 2012-12-17 02:00:14

anonimnystefy
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### Re: tau=2*pi

I think it would devastate people who have already memorized thousands of pi's digits... On the other hand, mayve those people deserve such devastation...

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #3 2012-12-17 09:58:03

bobbym

Online

### Re: tau=2*pi

Hi;

I think it is a great idea. But I do not think anyone is going to go for a change.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #4 2012-12-19 12:00:55

mathgogocart
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### Re: tau=2*pi

#### Fistfiz wrote:

http://tauday.com/tau-manifesto

To be brief, the "tauists", as they call themselves, argue that the constant pi should be replaced with tau=2*pi, which is much more natural.

I have to say that, to me, the manifesto was really convincing; as i see it, the use of tau instead of pi brings clarity and coherence with other formulas (for example area of a circular sector).

What do you think about it?

thats so annoying because pi was made,like THOUSANDS OF YEARRRRRRRRSSSS AGO!This idea is 0 YEARS OLD!

Hey.

## #5 2012-12-19 12:29:18

anonimnystefy
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### Re: tau=2*pi

There's no reason to get so upset...

Actually, the idea is several years old, at least 3 or 4 if not long. And it is not a bad idea, because some formulas to become just a little bit prettier, but in my opinion, it is not very useful...

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #6 2012-12-19 12:41:32

bobbym

Online

### Re: tau=2*pi

The guys who have memorized thousands of digits can now learn how to multiply thousands of digits.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #7 2013-01-23 01:09:28

n872yt3r
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### Re: tau=2*pi

I memorized this much of Pi: 3.141592653589796264883. I envy that... Chinese guy!

- n872yt3r
Math Is Fun Rocks!
By the power of the exponent, I square and cube you!

## #8 2013-01-23 09:20:26

noelevans
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### Re: tau=2*pi

Wasn't there a guy that bc (before computers) calculated pi out to 700 places by hand.  Then ac (after
computers) it was discovered that he made a mistake in the 200th digit and all the rest was trash
since each digit depended on the previous digit.  Probably spent the great bulk of his 15 year project
on the last 500 digits.  Mercy me!  But 200 digits of pi ain't bad, eh?

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).
LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

## #9 2013-01-23 09:51:34

anonimnystefy
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### Re: tau=2*pi

Actually, his score was 527 out of 707 digits correct! That is a great accomplishment!

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #10 2013-01-23 10:17:34

MathsIsFun

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### Re: tau=2*pi

Perhaps tau would have been a better choice, but there are also arguments supporting pi. Area = pi r^2 for example. And some stats formulas have plain old pi in them.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

## #11 2013-01-23 10:19:55

anonimnystefy
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### Re: tau=2*pi

I think their strongest argument are the radians. A tau radians is one full turn, half a tau radians is half a turn, and so on... On all other accounts they are either the same or pi is better.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #12 2013-01-23 10:25:50

MathsIsFun

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### Re: tau=2*pi

Maybe we could come up with an argument for pi/2. It is a "right" angle, so it must be right!

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

## #13 2013-01-23 10:40:06

anonimnystefy
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### Re: tau=2*pi

There would certainly be some arguments for it, but also arguments against it. For now, I don’t think there is any reason for switching from pi...

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #14 2013-01-23 12:05:01

bobbym

Online

### Re: tau=2*pi

Hi;

Shanks it seems was doing all that calculating for same reason we do it today. He wanted to know if there is some pattern in the digits of pi.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #15 2013-01-23 22:52:10

n872yt3r
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### Re: tau=2*pi

I agree with you, mathgogocart.
The ANCIENT GREEKS INVENTED IT IN THE ERA OF BC!

- n872yt3r
Math Is Fun Rocks!
By the power of the exponent, I square and cube you!

## #16 2013-01-24 01:10:06

anonimnystefy
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### Re: tau=2*pi

They didn't invent it. They gave it a name.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #17 2013-01-24 10:50:43

n872yt3r
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### Re: tau=2*pi

Sorry; I get so mixed up with the difference of inventions and discoveries.-

- n872yt3r
Math Is Fun Rocks!
By the power of the exponent, I square and cube you!

## #18 2013-01-25 00:36:05

Fistfiz
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### Re: tau=2*pi

#### MathsIsFun wrote:

Maybe we could come up with an argument for pi/2. It is a "right" angle, so it must be right!

30+2=28 (Mom's identity)