Talk:Chronology of computation of π

message: sorry for passing the baton but I'm a little busy rn so i wanted to note this in case i forget to come back.
Reference 6 is a dead link. (also sorry for not logging in on public wifi oops)
--2603:3004:7AB:F000:183C:B209:E4E1:F5E4 (talk) 02:14, 28 April 2024 (UTC)
thread_title: Dead link Reference 6

message: I think there is an orthographic and/or grammar and/or spelling error in the page title "Chronology of computation of pi".
I think it should read Chronology of computations of pi (or "Chronology of the computation of pi"). 
I post this comment here with the current date; if someone runs across this page in some months and there has not been any protest, I think we should move it to the new title (creates a redirect, anyway).
(PS: I would even prefer "approximations" instead of "computations", but this goes beyond the correction of a spelling error.) — MFH:Talk 20:08, 16 March 2006 (UTC)
thread_title: What's in a name, that which we call

message: You have included the value of Problem 50 and ignored the value of problem 48 in your stated value of Pi.
The 3x3 grid square of 9 units convereted to an octagon goes hand in hand with the 9 unit diameter circle. This is to give a maximum (3.16) and minimum (3.111') value for Pi. The egyptian are not stating Pi - 3.16 !
--Michael saunders 22:27, 18 March 2006 (UTC)
thread_title: Egyptian value of Pi

message: It might be that the Egyptians had an better approximation of pi than it says now in the article, also at an earlier date. E.g. in the wikipedia article about the "Great Pyramid of Giza" it says the pyramid is thought to be 280cubits high with 440cubits long basesides (cubits stands for Royal Cubit, a standard egyptian length used in those days). 
It makes the ratio between height and sum of the 4 baseside-lengths of this pyramid as 2 pi (1760 diveded by 280). This all might mean that the egyptians had an about two times more accurate number for pi with 22/7 in about 2500 BC (the generally accepted estimated date of completion of the Great Pyramid as stated in the same article about the pyramid). 83.83.104.161 (talk) 08:42, 28 January 2008 (UTC)
thread_title: Another Egyptian value of Pi

message: I'm not an expert in this field but while doing research I discovered that the 339/108 ratio attributed to the Indian mathematician might need to be 62,832/20,000 which actually yields a more accurate result.  I can't find anything quoted in a scholarly work to support either number however and hence will not edit the page.  —Preceding unsigned comment added by 24.22.31.67 (talk) 10:29, 11 February 2009 (UTC)
thread_title:  possible misrepresentation of one estimate 

message: Is that abbreviation common anywhere? If not I'm going to change it to "digits" or "places" or even "decimal places"; it will fit in the table. Shreevatsa (talk) 14:52, 14 March 2009 (UTC)
replies: text: I've changed it. Feel free to change it to something better/shorter. Does "decimal places" include the 3? (e.g. is "3.1415" four decimal places or five? Do all the records report using the same convention?) Shreevatsa (talk) 04:19, 17 March 2009 (UTC)
thread_title:  "dps"? 

message: Most Egyptologists do not think the pyramid builders knew and used Pi in constructing the pyramids. 
**This statement above is wrong. Professors IES Edwards, Petrie and Verner all stated that the proportions of the circle were deliberately incorporated into the designs of some of the Great Pyramids. The article by Greenberg is also wrong, and he is clearly unaware of the archaeological data that has been uncovered and published in numerous publications since as far back as 1883.** Dave Light 14/2/2011
See this by Professor of Mathematics Ralph Greenberg (and associated links), , and  The article should be reworded to clarify this, not put forward a minority view. Dougweller (talk) 13:27, 9 September 2010 (UTC)
replies: text: I removed the citation of Edwards, The Pyramids of Egypt p.269.  This book says "The normal angle of incline was about 52° - a slope which in the Pyramid of Meidum and in the Great Pyramid would have resulted if the height had been made to correspond with the radius of a circle the circumfere
nce of which was equal to the perimeter of the pyramid at ground level."  This does not support the assertion that these pyramids were involved in an early computation of pi.  Kenilworth Terrace (talk) 17:14, 10 September 2010 (UTC)
thread_title:  Pi and the pyramids 

message: It is unconventional to use a math symbol in a title even when that symbol is common usage. It's Three Blind Mice, not "3 Blind Mice", a Dirac delta function, not a δ function, and so forth. In this case, "pi" is a far more common usage than "". On Google books, the "computation of pi" -wikipedia gets twice as many hits as "computation of π" -wikipedia. CNN uses "pi", the BBC uses "pi", and the New York Times uses "pi". This entry in Merriam-Webster is entitled "pi". The "pi" entry in Britannica is a good model. They clearly have no policy or technical issue that prevents them from publishing a "", yet they use it only for equations. Van Nostrand's Scientific Encyclopedia does the same, and that is an even better authority (p. 4105 -- sorry no link). Math journals can go either way. Check here and here for journal articles with "pi" in their titles. Kauffner(talk) 02:31, 19 April 2011 (UTC)
thread_title:  Explanation of move from "{{pi}}" to "pi" 

message: There is a move discussion in progress on Talk:Liu Hui's pi algorithm which affects this page. Please participate on that page and not in this talk page section. Thank you.  —RM bot 07:16, 27 April 2011 (UTC)
thread_title: Move discussion in progress

message: There is a move discussion in progress on Talk:Liu Hui's π algorithm which affects this page. Please participate on that page and not in this talk page section. Thank you.  —RM bot 16:31, 27 April 2011 (UTC)
thread_title: Move discussion in progress

message: There is a move discussion in progress on Talk:Pi which affects this page. Please participate on that page and not in this talk page section. Thank you.  —RM bot 13:15, 2 June 2011 (UTC)
thread_title: Move discussion in progress

message: But a word "houkouonchi"in japanese means "badly with directions".--Takahiro4 (talk) 15:23, 4 May 2016 (UTC)
thread_title:  houkouonchi got first prize 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: It really does not feel accurate to list the Bible in the table as saying that pi is 3. The verse is just a description and does not make any claim to be declaring the ratio of a diameter of a circle to it's circumference (as opposed to other approximations in the list with the express intent of doing so). The description is also likely an approximation (or an error) of the length of sea, given that it's impossible for it to have a diameter of 10 and a circumference of 30. DerpyRainbow (talk) 00:01, 15 March 2024 (UTC)
thread_title:  Biblical value of pi 

message: I would like to reach a consensus on the inclusion criteria.
I propose every entry should have a reference, and unless relevant in some other way, every entry should have more digits calculated than previous ones. Uwsi (talk) 22:46, 16 May 2024 (UTC)
replies: text: I wouldn't worry too much.  There aren't really extraneous entries as it is.  I'd be interested in more detailed explanations of the calculation methods to the extent they can be documented. 2601:644:8501:AAF0:0:0:0:98EB (talk) 23:13, 21 May 2024 (UTC)
thread_title:  Inclusion criteria