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Pi or Ï

Posted Apr 25, '13 at 1:20pm

xeano321

xeano321

2,546 posts

Knight

what? I'm sorry..are you trying to say pi is better because it sounds like pie?

Of course! Not only does it taste good, as well as sound good (as the case may be), but it also is in the shape of a circle. A most complete example of delicious food, and an example of a mathematical constant.

Did you not see the puns I made?!

You call those puns? HA!

 

Posted Apr 25, '13 at 1:46pm

Bronze

Bronze

2,337 posts

Haha math. That thing I used to use.

 

Posted Apr 25, '13 at 4:17pm

GandalftheGrey666

GandalftheGrey666

1,786 posts

Alovera, how did you remember 90 digits of Pi?Well, I have to Pi now. (Get it?).

 

Posted Apr 25, '13 at 4:17pm

aknerd

aknerd

1,275 posts

However, Tau is just that little bit easier to learn. It just gets rid of how students get confused when pi is half way around a circle and 2pi is all the way around.

You're ignoring the fact that "all the way around" is really just halfway around twice. No no- I fully realize that that sounds completely stupid. Hear me out.

First of all, we hardly ever talk about angles greater than 180 degrees, and if we do, we typically refer to them as a negative angle (that is less than 180 degrees). 180  degrees (which is a straight line), is a more intuitive concept than 360 degrees. Furthermore, we get the nice property that sin(pi)=sin(0), but that cos(pi) =  - cos(0), which is an easy way to remember their difference. Sure, sin and cos may have a periodicity of tau (or 2pi), but their roots and critical values are spaced by pi. Those are what more often really matter in analytical calculus and algebra.

And euler's formula is just any old equation.

So, in summary: tau is way better if you want to do things like calculate the circumference of a circle, but you only have time to press two buttons and you don't remember the formula for diameter. It is also nice for making the unit circle look pretty, so its friends (the riemann sphere and the mobius strip) won't make fun of it anymore at parties. 

Pi is better if you want to do math.

Phi is pretty cool if you want to impress your friends (who don't watch vihart).

 

Posted Apr 25, '13 at 4:37pm

jeol

jeol

3,565 posts

You call those puns? HA!

Like yours is even original...

Jussayin'; it's kind of cliche.

 

Posted Apr 25, '13 at 5:50pm

pangtongshu

pangtongshu

8,238 posts

but it also is in the shape of a circle.

I'm sorry..I couldn't hear you over my phi..which can be seen all throughout nature (examples: shells, flowers, etc), in architecture, and even throughout the human body (among many other things).
Check and mate

Phi is pretty cool if you want to impress your friends (who don't watch vihart).

Should I know what vihart is...?

 

Posted Apr 25, '13 at 6:08pm

aknerd

aknerd

1,275 posts

Should I know what vihart is...?

Well, only if you want plenty of math stuff to talk about when you're chatting up attractive people at your local alcohol dispensary.

Here ya go

 

Posted Apr 26, '13 at 1:16am

landmaster2000

landmaster2000

126 posts

I once memorized about 30 digits. It was surprisingly fun to quiz myself on it. But it got kinda old. Nice job with the 90! Also on the topic of weird math symboly things... How about the psi ψ symbol? Used for finding the probability of finding a particle somewhere or something. Kinda went over it in my Chem class.

 

Posted Apr 26, '13 at 2:40am

Reton8

Reton8

2,503 posts

Moderator

Pi? I have pi memorized from start to the end.

P-I

Ha ha (*cough*). Get it?

But, does anyone have Planck's constant memorised or
e memorised or the gravitational constant memorised?

 

Posted Jun 7, '13 at 2:37am

pangtongshu

pangtongshu

8,238 posts

 
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