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Latest comment: 1 month ago by D.Lazard in topic Semi-protected edit request on 20 August 2026
Featured articlePi is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.
Main Page trophyThis article appeared on Wikipedia's Main Page as Today's featured article on July 22, 2012, and on March 14, 2026.
Article milestones
DateProcessResult
July 23, 2006Good article nomineeNot listed
October 25, 2007Good article nomineeNot listed
November 10, 2007Good article nomineeListed
November 30, 2007Peer reviewReviewed
April 18, 2012Peer reviewReviewed
June 4, 2012Featured article candidatePromoted
Current status: Featured article


Semi-protected edit request on 15 November 2025

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pi is not trillions of digits it is infinite numbers after the decimal. ~2025-33517-54 (talk) 22:40, 15 November 2025 (UTC)Reply

 Not done: Pi has been approximated/calculated out to trillions of digits so far. The statement is correct as written. —C.Fred (talk) 22:44, 15 November 2025 (UTC)Reply
pi is finite Cenchros Roseus (talk) 20:39, 23 March 2026 (UTC)Reply

Is there a place to put the first 100/1000 digits of pi in the article?

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Might be a silly question, but given the article is about pi, shouldn't some parts of pi, like at least 100-1000 digits, be included somewhere? VidanaliK (talk to me) (contributions) 00:29, 14 March 2026 (UTC)Reply

The actual digits of pi really aren't that notable. Human efforts to compute lots of digits are notable, and the practice of memorizing digits is notable. Both of these are covered in the article. ~2026-16209-89 (talk) 00:41, 14 March 2026 (UTC)Reply
I believe notability is only required to have a specific article about it. I'm asking if there is a place in the existing pi article where the digits can be put. VidanaliK (talk to me) (contributions) 00:43, 14 March 2026 (UTC)Reply
This question has been asked several times over the past 2 decades. After discussion, the consensus has always been to not display more than 25 digits or so. Readers who want more digits can use any of the "external links" at the bottom of the article to get more digits. Noleander (talk) 00:46, 14 March 2026 (UTC)Reply
Did you try clicking the link in "(see OEIS: A000796)"? That page links to e.g. https://web.archive.org/web/20140225153300/http://www.exploratorium.edu/pi/pi_archive/Pi10-6.htmljacobolus (t) 01:39, 14 March 2026 (UTC)Reply
I don’t really think that it would be necessary to include over 20 digits of pi Cenchros Roseus (talk) 20:39, 23 March 2026 (UTC)Reply

The GIF makes the text difficult to read

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It is very hard to read text with an animated GIF constantly moving in one's field of vision. The GIF ought to be moved down, at the very least.— chbarts (talk) 02:57, 29 March 2026 (UTC)Reply

Can you give more details... Are you saying the gif is covering up text? Or you saying the movement simply distracting? Gifs are fairly common on the Internet these days, I think most people are accustomed to seeing them in many websites and apps. Noleander (talk) 03:31, 29 March 2026 (UTC)Reply
MOS:ANIMATION requires that animations either run shorter than five seconds and then stop (not loop), or have a control to stop them. They can be very distracting for some people, as the OP states. I have added a stop control, modeled after the one in Four-dimensional space and added there after a similar discussion, Talk:Four-dimensional space § Animation fails standards. —David Eppstein (talk) 04:40, 29 March 2026 (UTC)Reply
Thanks for doing that. While you are looking at this, I think it would be more explanatory if the animation ran just a bit slower - maybe 2/3 the speed. Currently it is all over before you have time to see what is happening. Imaginatorium (talk) 05:30, 29 March 2026 (UTC)Reply
That's not something that's easy for me to do. Someone else more experienced in retiming animated gifs might find it easier. We do have several versions of this animation on commons including one with "slow" in its name but they all appear to run at the same speed. —David Eppstein (talk) 06:49, 29 March 2026 (UTC)Reply
I have had a go - if you open a gif with GIMP, each frame is a layer, and the duration is embedded in the name of the layer. Please see if you think this one would be better: https://imaginatorium.org/private/Pi-unrolled-720a.gif
I don't know how the animation controls work, but it might be better to have a non-looping version, with a "Replay" button. Imaginatorium (talk) 18:30, 3 April 2026 (UTC)Reply
The point of MOS:ANIMATION is that some users of WP want to have video controls (stop/pause/replay) so they can proceed thru an informative video at their own pace. So MOS:ANIMATION specifies two options:
  1. Decorative GIF - under 5 seconds: video controls not required
  2. Informative GIF - over 5 seconds: video controls are required
The infoBox should have a catchy, decorative 5 second GIF: clean, tidy, no video controls. Optionally, the article can include a second, longer, informative version in the article body, with video controls
Can someone create a 5 second version of that GIF? Even if we don't use it in this article, it would be good to have a 5 sec version in Wiki Commons. Noleander (talk) 19:02, 3 April 2026 (UTC)Reply
I don't know about you but I would find a version of that gif that runs for five seconds and then stops to be incredibly annoying. I want to watch it repeatedly until I understand it, and five seconds is barely enough time for a single iteration. And repeating the same image twice in different versions, once to be decorative, is a waste of space and viewer attention, also highly annoying. What we have now is an informative gif with a control, meeting the requirements. Why do you think that controls must be omitted? And why do you think there should even be an infobox? (The sidebar navbox is not an infobox.) —David Eppstein (talk) 19:19, 3 April 2026 (UTC)Reply

"3.14159265358979323846264338327" listed at Redirects for discussion

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The redirect 3.14159265358979323846264338327 has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2026 April 23 § Long PI redirects until a consensus is reached. Squawk7700 (talk) 09:24, 23 April 2026 (UTC)Reply

Semi-protected edit request on 20 August 2026

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I would like to add the Monte Carlo section a recent result from august 2025 that reads:

In 2026, two researchers generated an approximation of π using random numbers extracted as seven-digit chunks from a sample of 314 billion digits of π itself, reportedly the largest such sample used in this type of analysis. Their Monte Carlo analysis produced the approximation 3.141593, which matches the value of π when rounded to six decimal places, as expected from the method.Razeto, Alessandro; Rossi, Nicola (2026). "Can π generate itself? A Monte Carlo analysis of 314 trillion digits". arXiv:2608.06438 [math.GM]. {{cite arXiv}}: Unknown parameter |doi= ignored (help); Unknown parameter |url= ignored (help) KRossi79 (talk) 08:04, 20 August 2026 (UTC)Reply

 Not done: This is a preprint that does not seem to be published. A fortiori, there is no reliably published WP:secondary source that discusses the result. So, this is what Wikipedia calls WP:Original research. Wikipedia policy is to not include such original research. D.Lazard (talk) 08:54, 20 August 2026 (UTC)Reply