Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" Newsgroups: sci.math Subject: Re: How many different unit fractions are lessorequal than all unit fractions? (circle limits) Date: Wed, 2 Oct 2024 12:45:51 -0700 Organization: A noiseless patient Spider Lines: 75 Message-ID: References: <298dcb6f-5f58-48b6-80e3-34260bf721f8@att.net> <283c426f-ab1c-4ef0-a06c-1bf7d28a2cfa@att.net> <6b50a171-8127-4ce6-9bd3-2dc213638e9b@att.net> <519db81b-4a4d-417d-8cd2-7fef5a342efd@att.net> <6704347e-2f99-40f2-887f-de93f6fdd659@tha.de> <8b3e744d-3419-40c3-a7c6-fe59edd528a9@tha.de> <52f2f1b438b49812b0dac031a7dcb5e1cf8e7259@i2pn2.org> <68ff21abb8e0f40ff2d435fa2077b9f44c5a55b3@i2pn2.org> <3fc406c327f7e3d57710b0ba16167ee522450253@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Wed, 02 Oct 2024 21:45:52 +0200 (CEST) Injection-Info: dont-email.me; posting-host="9d0d48ce9ed56041897c5c50d198485a"; logging-data="3540032"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18CWHTDA8bowodZUKgOWI8sHHGjk2pnuMk=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:rR9A0kKXy1zsAJyiJ2NhtDBm5L8= In-Reply-To: Content-Language: en-US Bytes: 4370 On 10/1/2024 7:40 PM, Ross Finlayson wrote: > On 10/01/2024 06:37 PM, Chris M. Thomasson wrote: >> On 10/1/2024 2:11 PM, FromTheRafters wrote: >>> Chris M. Thomasson wrote : >>>> On 10/1/2024 6:28 AM, FromTheRafters wrote: >>>>> Chris M. Thomasson wrote : >>>>>> On 9/30/2024 4:13 AM, Richard Damon wrote: >>>>>>> On 9/29/24 3:16 PM, WM wrote: >>>>>>>> On 28.09.2024 14:58, Richard Damon wrote: >>>>>>>>> On 9/27/24 3:06 PM, WM wrote: >>>>>>>>>> On 25.09.2024 19:12, Richard Damon wrote: >>>>>>>>>> >>>>>>>>>>> The problem is that it turns out the NUF(x) NEVER actually >>>>>>>>>>> "increments" by 0ne at any finite point, it jumps from 0 to >>>>>>>>>>> infinity (Aleph_0) in the unboundedly small gap between 0 and >>>>>>>>>>> all x >>>>>>>>>>> > 0, >>>>>>>>>> >>>>>>>>>> How do you distinguish them? >>>>>>>>> >>>>>>>>> They have different values, so why can't you? >>>>>>>> >>>>>>>> Then distinguish the first one. >>>>>>>> >>>>>>>> Regards, WM >>>>>>> >>>>>>> There isn't a first one. >>>>>>> >>>>>>> Show me a circle with 4 sides. >>>>>> >>>>>> ;^) Humm, an n-gon where n is taken to infinity is a circle? >>>>> >>>>> As n goes to infinity, the angle of the vertices goes to 180 degrees >>>>> -- is a straight line a circle? >>>> >>>> No. As n goes to infinity it makes a circle. Think of a finite view >>>> of a "large" number for n: >>>> _________________________ >>>> n = 696969 >>>> >>>> normal_base = 1.f / n; >>>> >>>> for (i = 0; i < n; ++i) >>>> { >>>>      normal = normal_base * i; >>>>      angle = pi2 * normal; >>>> >>>>      p0 = { cos(angle), sin(angle) }; >>>> >>>>      plot(p0); >>>> } >>>> _________________________ >>>> >>>> I typed this in the newsreader, so sorry for any typos! This a finite >>>> view of a unit circle. Not a line. >>>> >>>> Take n to infinity, well, its a circle... >>>> >>>> Taking an n-gon to infinity is a circle. >>> >>> It is 'never' a circle. >>> >>> https://www.craig-wood.com/nick/articles/pi-archimedes/ >> >> an n-gon as n goes to infinity approaches a circle? Fair enough? > > Is the sum of its interior angles infinity, or, 2pi? [...] a square would be 2pi / 4, a pentagon 2pi / 5, ect... Fwiw, check this out: https://www.shadertoy.com/view/4s3yWj