Comments on: epi – pi

By: Bas Joosten

Bas Joosten — Wed, 04 Nov 2009 12:47:56 +0000

In reply to Adam:
“Also, I hear the 4th root of (9^2 + 19^2/22) is pi.”
I have no mathematica, but I can do high precision calculations. Found out it is approximately pi up to the 9th digit. Aproximately equal is still unequal, of course.

By: ElBosso

ElBosso — Mon, 12 Oct 2009 18:43:16 +0000

1111,1111^2 = 1234567,87654 |*7,2
= 8888888,71109 |sqrt (4 times)
= 2,718335 -> nearly e^1 !
cool, isn´t it?
found out by myself!

By: Eikinkloster

Eikinkloster — Tue, 25 Aug 2009 17:46:53 +0000

For those who are pissed because they don’t get the whole fuss:

1) Click on the image. It will take you to the actual comic. The image is only the first of three frames.
2) The joke in a nutshell: e^pi – pi = 19.999099979, which is very very close to 20. So close that if you don’t know better, you’ll feel tempted to believe you’ve introduced some rounding error on the calculation. The math guy exploits this to drive the computer guys from ACM nuts trying to find where they were making the mistake.

By: adam

adam — Fri, 24 Jul 2009 16:56:43 +0000

Hey, no one’s mentioned the alt-text in that XKCD comic yet:

“Also, I hear the 4th root of (9^2 + 19^2/22) is pi.”

Someone with Mathematica try that out.

By: Steven

Steven — Tue, 03 Mar 2009 08:07:09 +0000

http://mathworld.wolfram.com/AlmostInteger.html

By: Action Lyrics

Action Lyrics — Wed, 18 Feb 2009 05:43:36 +0000

I agree with you, I think it’s just a coincidence.

There are plenty of them if u look for them.

Eg sqrt(10) approx = 22/7 approx = pi.

Even though none of those are integers.

By: Patrick

Patrick — Fri, 24 Oct 2008 18:31:50 +0000

The most explicit definition of e is e = 1 + 1/1! + 1/2! + 1/3! + …

This is a rapidly converging sum (remember n! = n times (n-1) times … times 1).