User contributions for Christian Lawson-Perfect
From Why start at x, y, z
6 July 2021
- 14:4514:45, 6 July 2021 diff hist +118 References No edit summary
- 14:4314:43, 6 July 2021 diff hist +458 N ! Created page with "Category:Ambiguities The ! symbol is used to represent the factorial operation. When a factorial appears inside a sentence, it's possible to misinterpret the ! as an exc..."
- 14:0914:09, 6 July 2021 diff hist +150 Parentheses are overused No edit summary
- 14:0714:07, 6 July 2021 diff hist +87 References No edit summary
- 13:5613:56, 6 July 2021 diff hist +415 Symbols for names No edit summary
- 13:5013:50, 6 July 2021 diff hist +32 Main Page No edit summary
- 13:5013:50, 6 July 2021 diff hist +5 m Handwritten x No edit summary
- 13:5013:50, 6 July 2021 diff hist +332 N Handwritten x Created page with "Category:Local variations The letter x is often written differently in a mathematical context to prose text, in order to distinguish it from the multiplication symbol, \(..."
- 13:2413:24, 6 July 2021 diff hist +60 Parentheses are overused No edit summary
- 13:0513:05, 6 July 2021 diff hist +585 Symbols for names No edit summary
- 12:5612:56, 6 July 2021 diff hist +831 N Symbols for names Created page with "There are many conventions to do with naming things. This page might split into several when it gets big enough. Mathematicians tend to use single Latin letters to name thing..."
- 04:4904:49, 6 July 2021 diff hist +95 N Equality, identity, definition Created page with "<ref>[https://twitter.com/DavidKButlerUoA/status/1412252548833046541?s=19 Twitter thread]</ref>"
5 July 2021
- 10:1310:13, 5 July 2021 diff hist +19 Parentheses are overused No edit summary
- 09:5309:53, 5 July 2021 diff hist +56 Set notation No edit summary
- 09:5209:52, 5 July 2021 diff hist +674 N Set notation Created page with "When defining a set, something is normally put between curly braces. There are a few different conventions for what can go inside: * All the elements of the set, separated by..."
3 July 2021
- 14:3214:32, 3 July 2021 diff hist +38 What is a fraction No edit summary
- 14:3114:31, 3 July 2021 diff hist −11 Ways of writing numbers No edit summary
- 14:3114:31, 3 July 2021 diff hist +36 Ways of writing numbers No edit summary
- 14:3114:31, 3 July 2021 diff hist +30 There is no function application symbol No edit summary current
- 14:3014:30, 3 July 2021 diff hist +25 Quotes No edit summary
- 14:2714:27, 3 July 2021 diff hist +97 N Category:Local variations Created page with "This category collects conventions in notation that are particular to a place or group of people."
- 14:2614:26, 3 July 2021 diff hist +31 Combinations No edit summary
2 July 2021
- 19:0519:05, 2 July 2021 diff hist +146 Lack of brackets in spoken language No edit summary
- 15:0415:04, 2 July 2021 diff hist −34 Main Page No edit summary
- 15:0415:04, 2 July 2021 diff hist +228 N Quotes Created page with "<blockquote>Symboles are poor unhandsome (though necessary) scaffolds of demonstration; and ought no more to appear in publique, then the most deformed necessary business whic..."
- 15:0415:04, 2 July 2021 diff hist −230 Main Page No edit summary Tag: Manual revert
- 10:2510:25, 2 July 2021 diff hist +267 N Times smaller and bigger Created page with "Category:Ambiguities Category:Language Does "\(x\) is 5 times smaller than \(y\)" mean \(x = y/5\)? Does "\(x\) is one time smaller than \(y\)" make sense? Does "\(..." current
- 10:2010:20, 2 July 2021 diff hist +106 Chaining operators and relations No edit summary
- 10:1710:17, 2 July 2021 diff hist +427 N There is no function application symbol Created page with "While \(\circ\) is often used to represent ''composition'' of functions, it doesn't appear that anyone has invented a symbol for ''application'' of functions. Such a symbol c..."
- 10:1610:16, 2 July 2021 diff hist +160 Parentheses are overused No edit summary
- 10:1210:12, 2 July 2021 diff hist +99 Parentheses are overused No edit summary
- 10:0910:09, 2 July 2021 diff hist +103 Missing multiplication symbol No edit summary
- 10:0910:09, 2 July 2021 diff hist +132 N Combinations Created page with "Is it \(_nC_r\) or \(^nC_r\)?<ref>[https://twitter.com/christianp/status/335024096947617793 Tweet by Christian Lawson-Perfect]</ref>"
- 10:0810:08, 2 July 2021 diff hist +113 N What is a fraction Created page with "<ref>[https://twitter.com/christianp/status/1326847522539769856 Twitter thread by Christian Lawson-Perfect]</ref>"
- 10:0610:06, 2 July 2021 diff hist +117 N Chaining operators and relations Created page with "Category:Inconsistencies <ref>[https://twitter.com/ZenoRogue/status/798923050842324992 Tweet by ZenoRogue]</ref>"
- 10:0010:00, 2 July 2021 diff hist +192 N Ways of writing numbers Created page with "<ref>[https://twitter.com/christianp/status/1240294851641516036 Thread started by Christian Lawson-Perfect: " want as many different conventions for writing numbers as you can..."
- 09:4509:45, 2 July 2021 diff hist −12 Parentheses are overused No edit summary
- 09:4509:45, 2 July 2021 diff hist +422 N Parentheses are overused Created page with "Category:Conflicting definitions Parentheses are used to represent all sorts of operations and objects, many of which conflict with each other. Greatest common divisor:..."
- 09:2709:27, 2 July 2021 diff hist +193 Order of operations No edit summary
- 09:2309:23, 2 July 2021 diff hist +456 Unary division No edit summary
- 09:1909:19, 2 July 2021 diff hist +142 Missing multiplication symbol No edit summary
- 09:1709:17, 2 July 2021 diff hist +14 m Missing multiplication symbol No edit summary
- 09:1609:16, 2 July 2021 diff hist +160 Missing multiplication symbol No edit summary
- 09:1509:15, 2 July 2021 diff hist +66 Missing multiplication symbol No edit summary
- 09:1009:10, 2 July 2021 diff hist +291 Missing multiplication symbol No edit summary
- 08:5608:56, 2 July 2021 diff hist +507 N Something on the right of a radical Created page with "Category:Ambiguities Category:Handwriting A square root is often shown with a radical symbol: \( \sqrt{x} \). The top line is drawn as wide as it needs to be to cover..."
- 08:5208:52, 2 July 2021 diff hist +54 Long variable names No edit summary
- 08:5108:51, 2 July 2021 diff hist +533 N Long variable names Created page with "Mathematicians normally stick to single-letter variable names. But when they don't, it can be hard to tell if there's a missing multiplication symbol or not. Some people..."
- 08:3508:35, 2 July 2021 diff hist +11 m MathML Intent No edit summary current
- 08:3508:35, 2 July 2021 diff hist +1 m Main Page No edit summary
- 08:3508:35, 2 July 2021 diff hist +26 Main Page No edit summary
- 08:3508:35, 2 July 2021 diff hist +98 N Category:References Created page with "This category collects pages that contain references to good places to find material for the wiki." current
1 July 2021
- 09:3309:33, 1 July 2021 diff hist +8 Positive-and-Negative No edit summary
- 09:3309:33, 1 July 2021 diff hist +8 Natural numbers No edit summary
- 09:3309:33, 1 July 2021 diff hist +9 m Modulus No edit summary current
- 09:3109:31, 1 July 2021 diff hist +122 N Category:Conflicting definitions Created page with "This category is for definitions of terms or mathematical objects that don't have a single universally recognised meaning." current
- 09:3109:31, 1 July 2021 diff hist +38 Whole numbers No edit summary
- 09:3009:30, 1 July 2021 diff hist +95 Mixed fractions No edit summary current
- 09:2809:28, 1 July 2021 diff hist +2 m Mixed fractions No edit summary
- 08:5908:59, 1 July 2021 diff hist +25 m References No edit summary
- 08:5808:58, 1 July 2021 diff hist +25 m MathML Intent No edit summary
30 June 2021
- 14:3714:37, 30 June 2021 diff hist +329 User:Christian Lawson-Perfect No edit summary current
- 13:1213:12, 30 June 2021 diff hist +174 Stacked fractions No edit summary
- 13:0913:09, 30 June 2021 diff hist +63 Stacked fractions No edit summary
- 13:0813:08, 30 June 2021 diff hist +73 N File:Xi bar over Xi .jpg No edit summary current
- 13:0213:02, 30 June 2021 diff hist −35 Mixed fractions No edit summary
- 13:0213:02, 30 June 2021 diff hist 0 m Mixed fractions No edit summary
- 13:0113:01, 30 June 2021 diff hist +315 Mixed fractions No edit summary
- 12:5612:56, 30 June 2021 diff hist +83 Stacked fractions No edit summary
- 12:5512:55, 30 June 2021 diff hist +912 Order of operations No edit summary
- 10:4810:48, 30 June 2021 diff hist +83 Main Page No edit summary
- 10:4710:47, 30 June 2021 diff hist +71 N Category:Unpleasantness Created page with "This category collects conventions that offend someone's sensibilities."
- 10:4110:41, 30 June 2021 diff hist +27 References No edit summary
- 10:4010:40, 30 June 2021 diff hist +604 N References Created page with "[http://www.maths.ed.ac.uk/~aar/papers/cajorinot.pdf A History of Mathematical Notations] by Florian Cajori. Jeff Miller maintains some pages on the earliest known uses of [h..."
- 10:4010:40, 30 June 2021 diff hist +153 Use of different typefaces to convey meaning No edit summary
- 10:3910:39, 30 June 2021 diff hist +984 N Use of different typefaces to convey meaning Created page with "Category:Unpleasantness Mathematicians love using a different font, or style, to get a semantically different symbol, instead of using diacritics or a different letter en..."
- 10:3110:31, 30 June 2021 diff hist +15 Main Page No edit summary
- 10:3010:30, 30 June 2021 diff hist +135 N User:Christian Lawson-Perfect Created page with "I'm the creator of this site! For more about me, see my homepage: [https://somethingorotherwhatever.com/ somethingorotherwhatever.com]"
- 10:2610:26, 30 June 2021 diff hist +34 Main Page No edit summary
- 10:2510:25, 30 June 2021 diff hist +94 Main Page No edit summary
- 10:2510:25, 30 June 2021 diff hist +111 Main Page No edit summary
- 10:2310:23, 30 June 2021 diff hist +20 Main Page No edit summary
- 10:2310:23, 30 June 2021 diff hist +4 Main Page No edit summary
- 10:2210:22, 30 June 2021 diff hist +41 Main Page No edit summary
- 10:2210:22, 30 June 2021 diff hist +16 Powers of trigonometric functions No edit summary
- 10:2110:21, 30 June 2021 diff hist +752 N Powers of trigonometric functions Created page with "Category:Ambiguities Category:Inconsistencies Category:Unpleasantness When writing a power of a trigonometric function, it's common to write the power as a supers..."
- 10:0610:06, 30 June 2021 diff hist +26 Order of operations No edit summary
- 10:0610:06, 30 June 2021 diff hist +26 Missing multiplication symbol No edit summary
- 10:0510:05, 30 June 2021 diff hist +27 Missing multiplication symbol No edit summary
- 10:0510:05, 30 June 2021 diff hist +90 N Category:Ambiguities Created page with "This category collects notations which can be reasonably interpreted in more than one way." current
- 10:0410:04, 30 June 2021 diff hist −1 Unary division No edit summary
- 10:0310:03, 30 June 2021 diff hist +85 N Category:Inconsistencies Created page with "This category collects conventions in notation that are inconsistent with each other."
- 10:0210:02, 30 June 2021 diff hist 0 Unary division No edit summary
- 10:0110:01, 30 June 2021 diff hist +186 N Unary division Created page with "[[Category::Inconsistencies]] A minus sign with nothing on the left represents negation of whatever's on the right. Why isn't there a unary division symbol? \[ \div x = \fr..."
- 10:0010:00, 30 June 2021 diff hist +28 Main Page No edit summary
- 10:0010:00, 30 June 2021 diff hist −3 Order of operations No edit summary
- 09:5709:57, 30 June 2021 diff hist +473 N Order of operations Created page with "There are quite a few mnemonics for the order of operations. A common one in the UK is BODMAS: * Brackets * Orders * Division * Multiplication * Addition * Subtraction Elsew..."
- 09:5409:54, 30 June 2021 diff hist +132 N Missing multiplication symbol Created page with "It's common to omit a multiplication symbol: \(ab = a \times b\) But sometimes it's not as clear: \( a(b+1) = a \times (b+1) ? \)"
- 09:4709:47, 30 June 2021 diff hist +35 Main Page No edit summary
- 09:2909:29, 30 June 2021 diff hist −645 Main Page No edit summary