Is it time to just have tau? Isn't it just natural after just celebrating tau day on 6/28?

What about exp(i*tau)=-1?

http://youtu.be/IF1zcRoOVN0

I agree with this video. I've thought this before, as have my friends and colleagues. Not that we should use tau, but that pi is the wrong number to use, and 2pi the right number. I'd never previously heard of the tau manifesto or any kind of movement to make the change. He didn't even cover all the places that substituting tau for 2pi allows our intuition to more closely match the symbols used.

im not great with math but in electronics we always used 6.28

Pi are Round!

Cornbread are squared!

What do you call half the circumference of an igloo?

An Eskimo Pi.

If you pay close attention you'll notice:
e^(i*PI)=-1
e^(i*TAU)=1

These two aren't the same at all.

Were you making any deeper point other than "Slow typed the wrong sign" ?

whoops.

Well,
A.) it was kind of a big mistake.
B.) if TAU=2*PI, PI=(TAU/2). Everything else in the video was pretty self explanatory. I don't see what the big deal is. How can one number be better or more important than another number when they are directly related to each other?

In case "self-explanatory" wasn't enough, here's an explanation.

The circumference of a circle is equal to twice the radius multiplied by PI.
The diameter of a circle is equal to twice the radius.
The circumference of a circle is equal to the diameter multiplied by PI.
TAU is equal to twice PI.
The circumference of a circle is equal to the radius multiplied by TAU.

That's the great thing about math, there are so many different ways to look at the same thing.

well, i like pie...

I'll take that as 'No, I wasn't'. I sure do hope that no one is learning their special cases of Euler's, and other complex identities, from a dating website. For anyone so foolish, it was a big mistake. It would be like someone trying to learn proper capitalization from a dating website.



From my POV, we have chosen the wrong number because tau more directly expresses the more significant physical relationship.

Consider that when you work with computers, you use base-2 instead of base-10. All the numbers are the same, but one base 'fits' the problem more naturally.

Consider that when you are using an imperial standard toolset, you don't say "Hand me that 8/32" wrench", you say "hand me that 1/4" wrench. Denominator 4 is easier and more intuitive than denominator 32.

So yeah, the tau and 2pi are the same, but one does make 'more sense' than the other.

Um.... "thanks, captain obvious" ? Did you write this for people who can't download videos?