Talk:Circumference

message: I find this most viewed article needs a link to a German article. There are some synonyms for "circumference" in German: "Kreislinie", "Kreisrand, "Kreisperipherie"... Please, could somebody create the link to any of the concepts I presented above? Thanks.
I see in a previous discussion that somebody worried about that, though his suggestion was not accepted because his translation "Umfang" it is better translated as "perimeter". That was right, but still a German link is missing.  — Preceding unsigned comment added by Yeshua Saves (talk • contribs) 09:08, 15 October 2020 (UTC)
thread_title: Insert link to German Concept

message: When the formula for circumference is mentioned, first 2πr should come, and later should πd be derived. Reason being that if we consider the circle itself as an arc, it subtends 360° or 2π radians, and the apothem being r, the formula is 2πr.   —Preceding unsigned comment added by 120.62.174.37 (talk) 15:49, 21 August 2010 (UTC)
replies: text: The definition of Pi is the ratio between circumference and diameter.  It therefore makes sense to quote πd first, and then the derived 2πr afterwards.  [In future when you are posting a new comment to a talk page, please add it to the foot of the page, not to the top.  Please remember also to sign your comment by typing 4 tildes ~~~~ or using the signature button on the edit pane.]  David Biddulph (talk) 16:00, 21 August 2010 (UTC)
replies: text: That may be because a vandalism from 18:33, 26 November 2008 wasn't fully reverted(look now). 15:40, 12 December 2008 (UTC)
replies: text: I'm not yet fully convinced.  I agree the integral now makes more sense, and you've defined r as the radius, and it's an interesting calculation.  But the text says the formula is being derived without reference to the definition of π.  Yet you are relying on the knowledge that arcsin(1) is π/2.  IanB (talk) 23:22, 19 December 2008 (UTC)
thread_title: Definition of pi

message: Should Circumference be merged with Perimeter. As a non-genius I vote no. The reason is because I feel that most people can be confused with just the title Perimeter. When I search for info about a circle, to help with problem solving in school work, I don't think of Perimeter I think of Circumference. I'm sure there's lots of reasons why you two people above think otherwise with tons of formulas to prove your point. But I am a simple minded person and prefer my searchable topics to be simple also. CIRCle sounds like CIRCumference, see thats easy for me to remember, especially with my short-term memory. Thanks for listening to my input.
:NO this articled shouldn't be merged with Perimeter. I think Circumference is a quite exceptional and particular case of a perimeter and it's worth of its own article. BrunoX 01:47, 22 October 2006 (UTC)
replies: text:  I don't know much about anything in this article, but do you care to say why the articles should not be merged? To most people, including me, the two topics are extremely similar, however, I'll remain neutral in the discussion. But if you really don't want the articles to be merged you should put down some more reasons. CattleGirl  talk 07:47, 23 October 2006 (UTC)
thread_title:  Merge 

message: Why is this at the top of Special:Longpages? TheThingy Talk 18:18, 10 June 2007 (UTC)
replies: text: Because someone thought he was clever to vandalise it.  Jackaranga 23:38, 10 June 2007 (UTC)
thread_title:  Long Pages? 

message: Would it be possible for somebody suitably equipped (not me!) to provide definitions of Circumference other than the mathematical definition?  The page is entirely unhelpful within the context of other (non-mathematical) Wiki articles referring to the circumference of a thing. --Te Irirangi 01:33, 4 October 2007 (UTC)
thread_title:  Non mathematical definitions 

message: I deleted a link to a Friendster profile in the Links section.
Too ridiculous. 76.235.74.105 (talk) 21:49, 21 January 2008 (UTC)
thread_title:  External Links 

message: It looks strange to define circumference as a distance on a curved line (circle), cause the distance is how 2 points on a straight line are far apart; moreover, the circumference, as a distance, will rather be at best the perimeter of an inscribed "infinite" polygon. --Chiloa (talk) 13:33, 4 August 2008 (UTC)
thread_title:  Definition of a circumference. 

message: As stated above:
Yet you are relying on the knowledge that arcsin(1) is π/2.  IanB (talk) 23:22, 19 December 2008 (UTC)
thread_title: Circular argument

message: I hope other editors will agree with this clean up and addition.  Reddwarf2956 (talk) 03:51, 21 August 2012 (UTC)
thread_title:  Modified section Relationship with Pi, added Circle illustration with radius. 

message: thx, Gerald Trost  — Preceding unsigned comment added by 80.109.227.56 (talk) 03:08, 11 June 2013 (UTC)
thread_title:  please insert link to UMFANG (german wiki) 

message: UMFANG is linked with perimeter, not with circumference
is perimeter a synonym for circumference?
somehow UMFANG and circumference should be linked 
to better find your way from german to english and vice versa.
thx, Gerald Trost  — Preceding unsigned comment added by 80.109.227.56 (talk) 03:12, 11 June 2013 (UTC)
thread_title:  please insert link to UMFANG (german wiki) 

message: The "citation needed span" does not fit well because the span should also include the next sentence, and which does state a few examples of each subject. If you want something else, I am sure we can find/add something. I mean period of sine, cosine  and pendulum and brads use the constant in robotics. Simple harmonic motion is another use which is involve with all of the subjects stated. If you feel that the sentences need to be rewrote feel free to give it a try. John W. Nicholson (talk) 00:54, 23 June 2013 (UTC)
thread_title:  citation needed span 

message: "Circumference is a special case of perimeter in that the perimeter is typically around a polygon while circumference is around a closed curve." — I am puzzled: is a closed curve a special case of a polygon? Or the opposite? Boris Tsirelson (talk) 08:16, 4 September 2014 (UTC)
thread_title:  special and general 

message: Substituted at 01:52, 5 May 2016 (UTC)
thread_title: Assessment comment

message: The only reference on this page is broken:  San Diego State University (2004). "Perimeter, Area and Circumference" (PDF). Addison-Wesley. The link is broken: (http://www-rohan.sdsu.edu/~pwbrock/files/UNIT9.3.pdf) And thus needs replacing. I couldn't find a replacement link. TheCrispyBit (talk) 15:57, 1 December 2017 (UTC)
replies: text: I have moved your thread to the foot of the page, as that is where new threads go.  I have added an archive url to the ref.  I have removed your dead link tag which was misplaced;  the documentation of the template  tells you where it goes.  Thanks for pointing it out.  --David Biddulph (talk) 18:31, 1 December 2017 (UTC)
thread_title:  References 

message: The following Wikimedia Commons file used on this page or its Wikidata item has been nominated for deletion:
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Participate in the deletion discussion at the . —Community Tech bot (talk) 22:54, 14 July 2021 (UTC)
thread_title:  A Commons file used on this page or its Wikidata item has been nominated for deletion 

message: Change ‘Magenta’ to ‘Green’ in the diagram of the circle 2601:85:4600:7220:C011:A4B2:6174:A821 (talk) 17:12, 20 January 2022 (UTC)
replies: text: —GMX(on the go!) 17:26, 20 January 2022 (UTC)
replies: text: I've also changed D's color description from cyan to blue. —GMX(on the go!) 17:29, 20 January 2022 (UTC)
thread_title:  Semi-protected edit request on 20 January 2022