Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2012-12-16 02:54:25

Fistfiz
Member
Registered: 2012-07-20
Posts: 33

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?dizzy


30+2=28 (Mom's identity)

Offline

#2 2012-12-16 03:00:14

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,388

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...


“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

Offline

#3 2012-12-16 10:58:03

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,547

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.

Offline

#4 2012-12-18 13:00:55

mathgogocart
Member
Registered: 2012-04-29
Posts: 1,426

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?dizzy

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


Hey.

Offline

#5 2012-12-18 13:29:18

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,388

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...


“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

Offline

#6 2012-12-18 13:41:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,547

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.

Offline

#7 2013-01-22 02:09:28

n872yt3r
Member
Registered: 2013-01-21
Posts: 392

Re: tau=2*pi

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


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

Offline

#8 2013-01-22 10:20:26

noelevans
Member
Registered: 2012-07-20
Posts: 236

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?  smile


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.

Offline

#9 2013-01-22 10:51:34

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,388

Re: tau=2*pi

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


“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

Offline

#10 2013-01-22 11:17:34

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,535

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

Offline

#11 2013-01-22 11:19:55

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,388

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.


“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

Offline

#12 2013-01-22 11:25:50

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,535

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

Offline

#13 2013-01-22 11:40:06

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,388

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...


“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

Offline

#14 2013-01-22 13:05:01

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,547

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.

Offline

#15 2013-01-22 23:52:10

n872yt3r
Member
Registered: 2013-01-21
Posts: 392

Re: tau=2*pi

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


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

Offline

#16 2013-01-23 02:10:06

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,388

Re: tau=2*pi

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


“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

Offline

#17 2013-01-23 11:50:43

n872yt3r
Member
Registered: 2013-01-21
Posts: 392

Re: tau=2*pi

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


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

Offline

#18 2013-01-24 01:36:05

Fistfiz
Member
Registered: 2012-07-20
Posts: 33

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!

roflol


30+2=28 (Mom's identity)

Offline

Board footer

Powered by FluxBB