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Talk:Summation

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add it to a different wiki page. 4) The section titled "Miscellaneous" has an existing wiki page on harmonic numbers. Delete this section and add it to the wiki page on harmonic numbers. 5) The links for the citation to Graham et. al. either do not work or are irrelevant to the citation. Remove the links.
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Your reference to the rest of the article is a fallacy, as "positive integer" is used once in a formula where excluding zero is fundamental, while "natural number" is used three time, without indicating whether zero is included, except for the third formula that remains true if the term of index 0 is
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reads "This article may require cleanup to meet Knowledge's quality standards." When I edit the page, the banner goes away. I tried editing the summation page to fit the wiki encyclopedia style. I also revised the grammar, spelling, and references for correctness and clarity. D Lazard likes his(her)
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I KEEP removing these identities and someone keeps putting them right back in without checking correctness. Distributivity and factorization on the list are INVALID. If it doesnt work for a binomial why would anyone assume it worked for an arbitrary series? Hate fighting idiots on wikipedia. If you
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Here are some more edits: 1) The "Formal Definitions" section does not define recursion. 2) The last formula in the section titled "Summation index in exponents" is a partial proof. Remove the derivation. 3) The section titled "Growth rates" is irrelevant to this page. Delete the entire section and
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I am a dumb, ignorant, old guy going back to school to learn math. So, I read this article and find the statement "It is possible to sum fewer than 2 numbers". Really? That seems, to me, anyway, to violate the logic of a definition of a sum; a sum means we are adding one value to another value
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The sentence, as it is currently, is absolutely not ambiguous, as I do not know anybody who understand "the 100 first natural numbers" as not containing 100. Moreover, in the case of a doubt, this is clarified by the formula that follows. So, the unneeded use of a technical terminology that you
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1. Many definitions, including the official standard ISO 80000-2, include 0 in the natural numbers. "Natural numbers" may or may not include 0, while "positive integers" always excludes 0. A more precise term is preferable to a less precise one. Why use an ambiguous term when an unambiguous one
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You deal with sums of a single number all the time. Every time you go to a store and buy a single item, there's a line on the receipt that says "total" (er, well, "subtotal") with just the price of that one item, right? So the sum of a single item is really not an impossible concept—it's a very
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says "The lead should, as much as possible, be accessible to a general reader, so specialized terminology should be avoided". Here "positive integer" is a (mathematical) specialized terminology, as "positive" and "integer" are taught to kids a long time after they know natural
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says "The lead should, as much as possible, be accessible to a general reader, so specialized terminology should be avoided". Here "positive integer" is a (mathematical) specialized terminology, as "positive" and "integer" are taught to kids a long time after they know natural
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A sum of zero numbers is similar. Imagine that you have a bank account into which you make no deposits for a certain month. At the end of the month you will get a statement from the bank with a line that says something like, "Total deposits $ 0.00." That's a sum of no numbers!
429:(or more values). Why would we even bother to try to denote this impossible concept of a sum of one or zero values? That just does not make sense to me. Wouldn't we just instead say that the starting conditions "m = n" or "m : --> 1081:
How about replacing "summation of the first 100 natural numbers" with "summation of natural numbers from 1 to 100"? However, in the sentence immediately after it, it says "1 + 2 + 3 + ... + 100", so I think it's clear even as it is
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Which identities are wrong and what are the correct identities? Note that in the comments, "distributivity", ... do not mean that the identity makes the property explicit, but rather that this is used for proving the identity.
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I disagree with that "should have been". Your perspective is one derived from programmers (is it not?) who initiated their own convention long after mathematics had theirs. Youre assuming one is wrong
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Its probably best not to think of it as literal adding. Rather, think of it is a convention. Something formal mathematics has been forced to accept for consistency. Its not without its logic.
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youve accepted the other. It's a perfect example of bias. Am I wrong? Can you justify precisely why the convention *should* have been different without presupposing the other?
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are weak at math and dont know what youre talking about, and wont even research, then quit contributing. Simple. Im starting to think its malice rather than stupidity.
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here, as your change has been reverted by two different editors, none of which being the author of the disputed sentence. On the other hand there is a clear problem of
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ISO is not and has never been a standard for mathematics. It is not an official standard, as ISO is a private company. However, ISO is commonly used as a standard in
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2. The rest of the article (see the section titled "Powers and logarithm of arithmetic progressions") also uses the convention of including 0 in the natural numbers.
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Right; this is corrected now. As a general rule summation expressions would be simpler if the upper limit in a summation would have been the first value
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The sum of 1 from m to n is n - m + 1, not n - m. A trivial example, sum 1 from 1 to 10, the answer is not (10 - 1 = 9), it is (10 - 1 + 1 = 10).
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n" are just not allowed or undefined, in the same manner as we might say "any value divided by zero is undefined"? Please explain.
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Which relationship have in mind? For the relationship between repeated addition and multiplication, see the second paragraph of
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version. The first sentence has a personal pronoun referring to a sum. Keep reading each sentence...more errors follow.
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ISO is an independent, non-governmental international organization with a membership of 166 national standards bodies.
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has insisted on reverting this constructive edit, without providing a justification. Their actions suggest
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to include rather than the last value to include, but it's too late to change that convention. Note that
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1. The term "integer" is not "specialized terminology". "General reader" does not mean "preschooler".
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2. The term "natural number" (as opposed to simply "number") is no less "technical" than "integer".
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on Knowledge. If you would like to participate, please visit the project page, where you can join
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I'll look at the information to see if you're correct, should I have time to do that.
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except for the third formula that remains true if the term of index 0 is ommitted
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This seems like a trivial thing, but seems to be incorrect in the listing.
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It is also used as a standard in chemistry, physics, and mathematics. See
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This is my first ever Knowledge talk post. Please excuse my stupidity!
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Nevermind. It would appear that the IP was vandalizing the article
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Can you please explain why you removed a bunch of information?
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The sentence, as it is currently, is absolutely not ambiguous
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ambiguous, since "natural numbers" may or may not include 0.
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It is not an official standard, as ISO is a private company.
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Relationship between summation and repeated multiplication
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Defining a relationship between these two will be good.
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Change "natural numbers" to "positive integers" in lede
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Irrelevant. It is not true in the general case that
261:, a collaborative effort to improve the coverage of 1059: 967: 823:, since you tried 4 times to make the same change. 771: 716: 600:Most likely, there are other errors on this page. 33:for general discussion of the article's subject. 1207:Knowledge level-5 vital articles in Mathematics 978: 938: 928: 914: 894: 878:However, ISO is commonly used as a standard in 876: 866: 690: 1124:International Organization for Standardization 949:include 0. Underneath the summation symbol is 634:Looks like RLGoodwin is doing the work there. 8: 701: 700:. Otherwise, summation is denoted by using 911:3. I linked it to the article on integers. 207: 1051: 1041: 1030: 1017: 1007: 996: 990: 954: 757: 746: 740: 709: 692:For example, summation of the first 100 1197:Knowledge vital articles in Mathematics 1107: 209: 168: 802:2001:569:7F68:BF00:1967:F693:74B7:F460 1212:C-Class vital articles in Mathematics 7: 1160:Multiplication and repeated addition 1116:"Standard number sets and intervals" 1069:2001:569:7F68:BF00:34:F758:DCF1:F531 975:, meaning the summation starts at 0. 731:. For example, the sum of the first 255:This article is within the scope of 198:It is of interest to the following 23:for discussing improvements to the 1222:High-priority mathematics articles 945:The two formulas I'm referring to 735:natural numbers can be denoted as 567:https://en.wikipedia.org/Summation 14: 275:Knowledge:WikiProject Mathematics 1192:Knowledge level-5 vital articles 538:, what do you think about this? 278:Template:WikiProject Mathematics 242: 232: 211: 178: 169: 138: 45:Click here to start a new topic. 295:This article has been rated as 1202:C-Class level-5 vital articles 772:{\textstyle \sum _{i=1}^{n}i.} 422:Hello to Knowledge Community, 387:08:44, 10 September 2011 (UTC) 343:04:46, 10 September 2011 (UTC) 1: 897:MOS:MATH#Article introduction 834:MOS:MATH#Article introduction 678:19:20, 25 February 2019 (UTC) 662:18:41, 25 February 2019 (UTC) 489:03:04, 7 September 2012 (UTC) 472:03:01, 7 September 2012 (UTC) 454:02:12, 7 September 2012 (UTC) 269:and see a list of open tasks. 42:Put new text under old text. 1217:C-Class mathematics articles 1092:22:42, 4 November 2021 (UTC) 1077:21:33, 4 November 2021 (UTC) 859:10:02, 4 November 2021 (UTC) 810:21:39, 3 November 2021 (UTC) 698:1 + 2 + 3 + 4 + ⋯ + 99 + 100 647:Incorrect General Identities 639:23:17, 25 October 2018 (UTC) 620:23:15, 25 October 2018 (UTC) 610:18:54, 25 October 2018 (UTC) 594:18:54, 25 October 2018 (UTC) 580:18:05, 25 October 2018 (UTC) 553:02:08, 25 October 2018 (UTC) 543:01:34, 25 October 2018 (UTC) 50:New to Knowledge? Welcome! 1238: 462:useful concept, in fact. — 1172:19:39, 10 July 2023 (UTC) 1149:17:23, 10 July 2023 (UTC) 505:23:48, 23 July 2018 (UTC) 410:23:46, 23 July 2018 (UTC) 361:(and this is why I wrote 294: 227: 206: 80:Be welcoming to newcomers 688:The lede currently says 301:project's priority scale 724:is an enlarged capital 258:WikiProject Mathematics 1187:C-Class vital articles 1061: 1046: 1012: 982: 969: 942: 932: 918: 902: 884: 870: 780: 773: 762: 718: 75:avoid personal attacks 1062: 1026: 992: 970: 841:suggest is a form of 774: 742: 719: 185:level-5 vital article 132:Auto-archiving period 100:Neutral point of view 989: 953: 739: 708: 281:mathematics articles 105:No original research 968:{\displaystyle i=0} 418:Less than 2 terms?! 320:Sum of 1, off by 1? 1057: 965: 769: 717:{\textstyle \sum } 714: 696:may be written as 250:Mathematics portal 194:content assessment 86:dispute resolution 47: 457: 442:Allan.w.macdonald 440:comment added by 333:comment added by 315: 314: 311: 310: 307: 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