The minus sign is located directly below the plus sign. . The plus and minus signs, + and −, are mathematical symbols used to represent the notions of positive and negative as well as the operations of addition and subtraction (which correspond to sum and difference, respectively). Using Efficient Tabs in Excel Like Chrome, Firefox and Safari! Download for free in PNG, SVG, PDF formats ... plus plus sign minus time addition symbol calculator schedule add create mathematics Style. a²+b²=c². If the charge is greater than 1, a number indicating the charge is written before the sign (as in SO2−4 ). Instructions on how to type Plus/minus sign for Windows, Mac, and in HTML. Material Outlined. As well as the normal mathematical usage, plus and minus signs may be used for a number of other purposes in computing. [23] For example, 1/x→+ The orbital is the maximum probability of finding an electron around the nucleus.This probability is measured in terms of wave function.The wave function can have a positive or negative values.Therefore for defining the wave function, plus sign is used for positive wave function while a minus sign is used for negative … It can also serve as a unary operator that leaves its operand unchanged (+x means the same as x). The ± symbol means that the number (to the right of the symbol) is two numbers: a positive number AND a negative number. Amazing! And if you are using Windows, simply press down the Alt key and type 241 using the numeric keypad on the right side of your keyboard. As the true minus is not available on most keyboard layouts, typographers sometimes use the very similar en dash, U+2013, to represent the minus sign although it is "not preferred" in mathematical typesetting. And there is no plus OR minus symbol in MATLAB, that is, a symbol that indicates EITHER plus or minus. 1 decade ago. {\displaystyle \infty } This code is designed to be used to type any symbol that has no dedicated key on the keyboard. For a complete HTML5 entity reference, please go to the next chapter. Save 50% of your time, and reduce thousands of mouse clicks for you every day! For example: 3 + 4. means 3 plus 4, which is the addition of 3 and 4, which is equal to 7. Alt + 0191 Shift + Option + ? Plus minus Icons - Download 1194 Free Plus minus icons @ IconArchive. In the algebraic notation used to record games of chess, the plus sign + is used to denote a move that puts the opponent into check, while a double plus ++ is sometimes used to denote double check. Plus and minus signs are often used in tree view on a computer screen—to show if a folder is collapsed or not. We can get a plus or minus sign by copying and pasting '\\pm' into desmos, don't ask why this works, but it works with a whole bunch of other special characters in desmos as well, like \\zeta for . The hyphen-minus sign, -, is the original ASCII version of the minus sign, which doubles as a hyphen. https://www.youtube.com/channel/UCmV5uZQcAXUW7s4j7rM0POg?sub_confirmation=1 How to type Plus-Minus & Minus-Plus symbol in Word Excel minus - plus sign ( plural minus-plus signs ) ( mathematics) the symbol ∓, meaning "minus or plus", used alongside the plus-minus sign to show that a negative value is to be taken where the positive value is indicated by the plus-minus sign, and vice versa (as in (x ± 1) / (x ∓ 2), which means (x + 1) / (x - 2) and (x - 1) / (x + 2)). iOS Glyph. Though the signs now seem as familiar as the alphabet or the Hindu-Arabic numerals, they are not of great antiquity. Then the minus sign is displayed on the left of selected rows, or displayed at the top of the selected columns. [9], In his 1489 treatise, Johannes Widmann referred to the symbols − and + as minus and mer (Modern German mehr; "more"): "was − ist, das ist minus, und das + ist das mer". In APL a raised minus sign (Unicode U+00AF) is used to denote a negative number, as in ¯3. Minus sign definition is - a sign — used in mathematics to indicate subtraction (as in 8—6=2) or a negative quantity (as in —10°) —called also negative sign. There is a commercial minus sign, ⁒, which is used in Germany and Poland. In chemistry, superscripted plus and minus signs are used to indicate an ion with a positive or negative charge of 1 (e.g., NH+4 ). 2. Many algebraic structures, such as vector spaces and matrix rings, have some operation which is called, or is equivalent to, addition. Similarly, in the expression language used by Texas Instruments graphing calculators (at least the early models including the TI-81 and TI-82), a raised minus sign is used in negative numbers (e.g., −3 as the result of 2 − 5). If you want to indicate that a mathematical expression can be both positive and negative, then you can use the ± symbol. HTML symbol, character and entity codes, ASCII, CSS and HEX values for Plus or Minus Sign, plus a panoply of others. In many contexts, it does not matter whether the second or the third of these usages is intended. All styles. Keyboard Shortcut for Plus Minus Sign in Windows Shortcut Key : Alt+0177. In mathematics the one-sided limit x→a+ means x approaches a from the right (i.e., right-sided limit), and x→a− means x approaches a from the left (i.e., left-sided limit). Search more than 600,000 icons for Web & Desktop here. In most programming languages, subtraction and negation are indicated with the ASCII hyphen-minus character, -. In regular expressions, + is often used to indicate "1 or more" in a pattern to be matched. In statistics you’ll often see results given as being “ ± 3% ”. as x→0−. While in J a negative number is denoted by an underscore, as in _5. . I'm doing data organization for a research project. Log InorSign Up. {\displaystyle \infty } To type this symbol, press and hold the Alt key whilst you type the Plus Minus alt code (241) using the numeric keypad. If you want to indicate that a mathematical expression can be both positive and negative, then you can use the ± symbol. Free icons of Plus minus in various UI design styles for web, mobile, and graphic design projects. Plus/minus sign definition is - the sign ± used to indicate a quantity (such as 2 in 'the square root of 4 is ±2') taking on both an algebraically positive value and its negative and to indicate a plus or minus quantity (such as 4 in 'the population age was 30 ± 4 years') —called also plus/minus symbol. In mathematics, it generally indicates a choice of exactly two possible values, one of which is the negation of the other. Here is a small example: x² = … [26] This practice was adopted into Israeli schools and is still commonplace today in elementary schools (including secular schools) but in fewer secondary schools. Lv 4. Upside down ! ∞ −5 is the same number either way. Some elementary teachers use raised plus and minus signs before numbers to show they are positive or negative numbers. Move the group plus/minus sign to top in Excel. Please do as follows to hide or unhide rows or columns with plus or minus sign in Excel. It is not to be confused with, Summa de arithmetica, geometria, proportioni et proportionalità, "List of Arithmetic and Common Math Symbols", The birth of symbols – Zdena Lustigova, Faculty of Mathematics and Physics Charles University, Prague, "The market for Luca Pacioli's Summa Arithmetica", Earliest Uses of Various Mathematical Symbols, "Microsoft Office Excel Calculation operators and precedence", "The Unicode Standard, Version 13.0, Chapter 6.2", Christian-Jewish Dialogue: Theological Foundations By Peter von der Osten-Sacken (1986 – Fortress Press), https://en.wikipedia.org/w/index.php?title=Plus_and_minus_signs&oldid=999159788, Short description is different from Wikidata, Articles containing Italian-language text, Articles with unsourced statements from September 2020, Articles which use infobox templates with no data rows, Creative Commons Attribution-ShareAlike License, This page was last edited on 8 January 2021, at 19:51. PLUS-MINUS SIGN: Block: Latin-1 Supplement: Category: Symbol, Math [Sm] Combine: 0: BIDI: European Number Terminator [ET] Mirror: N: Old name: PLUS-OR-MINUS SIGN: Index entries: PLUS-MINUS SIGN: See Also: minus-or-plus sign U+2213: Version: Unicode 1.1.0 (June, 1993) Encodings; HTML Entity (decimal) ± HTML Entity (hex) ± HTML Entity (named) ± How to type in Microsoft … All three uses can be referred to as "minus" in everyday speech, though the binary operator is sometimes read as "take away". . In physics, the use of plus and minus signs for different electrical charges was introduced by Georg Christoph Lichtenberg. How to type or write ASCII code Plus-minus sign, ± plus, minus, sign,ascii,241, ascii art, ascii table, code ascii, ascii character, ascii text, ascii chart, ascii characters, ascii codes, characters, codes, tables, symbols, list, alt, keys, keyboard, spelling, control, printable, extended, letters, epistles, handwriting, scripts, lettering, majuscules, capitals, minuscules, lower, case, small, acute, accent, sharp, engrave, diaresis, circumflex, tilde, cedilla, anillo, circlet, eñe, enie, arroba, pound, sterling, cent, type, write, spell, spanish, english, notebooks, laptops, ascii, asci, asccii, asqui, askii, aski, aschi, aschii, (262) . In the International Phonetic Alphabet, subscripted plus and minus signs are used as diacritics to indicate advanced or retracted articulations of speech sounds. PLUS-MINUS SIGN: na1 PLUS-OR-MINUS SIGN: NChar N: NFC_QC Y: NFD_QC Y: NFKC_CF # NFKC_QC Y: NFKD_QC Y: nt None: nv NaN: OAlpha N: ODI N: OGr_Ext N: OIDC N: OIDS N: OLower N: OMath N: OUpper N: Pat_Syn Y: Pat_WS N: QMark N: Radical N: SB XX: sc Zyyy: scf # scx Zyyy: SD N: slc # stc # STerm N: suc # tc # Term N: uc # UIdeo N: Upper N: VS N: WB XX: WSpace N: XIDC N: XIDS N: XO_NFC N: … This is the way to create a ... "How to Type or Make Plus or Minus ± in Computer Keyboard" was written by admin under the Computers, Tricks, Tips category. The reason for this practice is that it avoids the writing of a symbol + that looks like a Christian cross. Windows 10. The issue I have is that I want to link these values and place a ± sign in between them (ex. In some programming languages, concatenation of strings is written "a" + "b", and results in "ab". Plus and minus are Latin terms meaning "more" and "less", respectively. ∞ . Learn how to make over 32 Plus Sign symbols of math, copy and paste text character. Blood types are often qualified with a plus or minus to indicate the presence or absence of the Rh factor. HTML Arrows is shared by Toptal Designers, the marketplace for hiring elite UI, UX, and Visual designers, along with top developer and finance talent.Discover why top companies and start-ups turn to Toptal to hire freelance designers for their mission-critical projects. WINDOWS: on computers with Windows operating system like Windows 8, Win 7, Vista, Windows XP, etc.. To get the letter, character, sign or symbol "±": ( Plus-minus sign ) on computers with Windows operating system: 1) Press the "Alt" key on your keyboard, and do not let go. Material Two Tone. For example, "C+" is read "C augmented chord". [21] For example, subtracting −5 from 3 might be read as "positive three take away negative 5", and be shown as. In some occasions, this is extended to two plus or minus signs (e.g., A++ being two grades higher than A). … In the IEEE floating-point standard, 1 / −0 is negative infinity (− Also several other software programs usable for calculations don't accept the U+2212 minus. Upside down ? The symbols (P with overline, p̄, for più (more), i.e., plus, and M with overline, m̄, for meno (less), i.e., minus) appeared for the first time in Luca Pacioli's mathematics compendium, Summa de arithmetica, geometria, proportioni et proportionalità, first printed and published in Venice in 1494. This includes a single workbook with about 22 spreadsheets in it. This notation may be used when it is desired to emphasize the positiveness of a number, especially in contrast with the negative numbers (+5 versus −5). For example pasting =3−2 into Excel or 3−2= into the Windows calculator won't work. All entities in the table below, will display correctly in all browsers, both in HTML4 and in HTML5 pages. [26][27] Unicode has this symbol at position U+FB29 ﬩ HEBREW LETTER ALTERNATIVE PLUS SIGN. However, to type this symbol in MS Word, just type 00B1, select it and then press Alt + X to get the Plus or Minus sign. 1. [8] The − may be derived from a tilde written over ⟨m⟩ when used to indicate subtraction; or it may come from a shorthand version of the letter ⟨m⟩ itself. You can also spell it with u 00B1 unicode, u plus 00B1, uncode 00B1 or unicode + … Go to the worksheet with group you want to move the plus/minus signs to top. [24] The Unicode character used for the tone letter (U+02D7) is different from the mathematical minus sign. ( Interpunct or space dot )ASCII code 251 = ¹ ( Superscript one, exponent 1, first power )ASCII code 252 = ³ ( Superscript three, exponent 3, cube, third power )ASCII code 253 = ² ( Superscript two, exponent 2, square, second power )ASCII code 254 = ■ ( black square )ASCII code 255 = nbsp ( Non-breaking space or no-break space ). The minus sign is also used, in place of an en dash, for a single covalent bond between two atoms as in the skeletal formula. ) whereas 1 / 0 is positive infinity ( The plus sign can also indicate many other operations, depending on the mathematical system under consideration. Author has 60 answers and 29.1K answer views. The Math ± Plus-Minus symbol symbol is commonly used: (1) In mathematical expressions and equations. Type the ‘Plus or Minus sign’ ± into Microsoft Word, Excel, PowerPoint or Outlook. This is the simple page to learn how to type / make plus or minus on your windows keyboard. 2) While keep press "Alt", on your keyboard type the number "241", which is the number of the letter or symbol "±" in ASCII table. . Plus Sign. Solved: I was given a previously created pdf form and in one of the sections there is a plus and minus sign next to the row so when you click on the plus it - 10206524. cancel. ABOUT. Color. Using the Plus or Minus Symbol Shortcut (Mac and Windows) For Mac users, the keyboard shortcut for the Plus or Minus Symbol is Option + Shift + =. iOS Filled. The ± symbol means that the number (to the right of the symbol) is two numbers: a positive number AND a negative number. Answer. [5][6] [28], "−" redirects here. In music, augmented chords are symbolized with a plus sign, although this practice is not universal (as there are other methods for spelling those chords). [citation needed]. It can be used as a substitute for the true minus sign when the character set is limited to ASCII. I'm new to Excel (for mac) and need some help urgently! I am currently making a Master Table from values calculated in these different sheets. List of Plus Sign symbols with html entity, unicode number code. Material Sharp. By "taking the square root" of either side of the first computational line above, and slapping a "plus-minus" sign in front of the numerical side of the equation, we would have found the same two solution values, including their different signs, in one or two fewer steps. ). Select the entire rows or columns you need to hide or unhide with plus or minus sign, then click Group in the Outline group under Data tab. plus-minus sign (plural plus-minus signs) ( mathematics ) the symbol ± , meaning "plus or minus", used to indicate the precision of an approximation (as in "The result is 10 ± 0.3", meaning the result is anywhere in the inclusive range from 9.7 to 10.3), or as a convenient shorthand for a quantity with two possible values of opposing sign and identical magnitude (as in "The roots of the equation x 2 … For more, see § Other uses. [7], The + sign is a simplification of the Latin: et (comparable to the evolution of the ampersand &). 1 decade ago. See screenshot: 2. Turn on suggestions. Most programming languages and other computer readable languages do this, since ASCII is generally available as a subset of most character encodings, while U+2212 is a Unicode feature only. Write the significance of a plus and a minus sign shown in representing the orbitals. select the plus/minus sign and click insert. . Click Data > Outline setting button. How to type symbols, accents, special characters, and weird punctuation How to type Plus/minus sign ± as x→0+ but 1/x→− Plus Sign purple + ± Plus-minus Sign red ± ± Plus-minus Sign orange ± ± Plus-minus Sign pink ± ± Plus-minus Sign green ± ± Plus-minus Sign royal blue ± ± Plus-minus Sign purple ± The minus sign is located directly below the plus sign. HTML Arrows offers all the html symbol codes you need to simplify your site design. Plus-Minus Sign . Plus-Minus ± symbol isn’t just used for equations, it’s also used as a shortcut for ‘plus or minus’. Plus Minus Alt + 0177 Shift _ Option + = Square Root Alt + 251 Option + v. Fun/Joke. How typing: Plus-minus sign ? [10] They weren't used for addition and subtraction in the treatise, but were used to indicate surplus and deficit; their first use in their modern sense appears in a book by Henricus Grammateus in 1518. In linguistics, a superscript plus + sometimes replaces the asterisk, which denotes unattested linguistic reconstruction. Combinations of the plus and minus signs are used to evaluate a move (+/−, +/=, =/+, −/+). Related Posts. But when do you use the Plus minus sign? The Egyptian hieroglyphic sign for addition, for example, resembled a pair of legs walking in the direction in which the text was written (Egyptian could be written either from right to left or left to right), with the reverse sign indicating subtraction:[3], Nicole Oresme's manuscripts from the 14th century show what may be one of the earliest uses of + as a sign for plus. [18] Further, a few textbooks in the United States encourage −x to be read as "the opposite of x" or "the additive inverse of x"—to avoid giving the impression that −x is necessarily negative (since x itself may already be negative)[19], In mathematics and most programming languages, the rules for the order of operations mean that −52 is equal to −25: Exponentiation binds more strongly than the unary minus, which binds more strongly than multiplication or division. [25] Ways of producing the en dash are available on most computers; see Dash § Rendering dashes on computers. Positive and negative are sometimes abbreviated as +ve and −ve.[22]. Simple keyboard shortcut to make plus minus sign in windows is "0177" Press the "alt" key and hold it down while typing "0177" on the Windows keyboard. For example, B− ("B minus") is one grade lower than B. minus-plus sign (plural minus-plus signs) (mathematics) the symbol ∓, meaning "minus or plus", used alongside the plus-minus sign to show that a negative value is to be taken where the positive value is indicated by the plus-minus sign, and vice versa (as in (x ± 1) / (x ∓ 2), which means (x + 1) / (x - 2) and (x - 1) / (x + 2)). It can also serve as a unary operator that leaves its operand unchanged (+x means the same as x). Because we were factoring a difference of squares, we arrived at two solutions, being equal other than for their signs. Plus or Minus symbol. 1. This notation may be used when it is desired to emphasize the positiveness of a number, especially in contrast with the negative numbers (+5 versus −5). Here is a small example: x² = 4 For the variable x, you could now use ± 2. To type the Plus or Minus Symbol anywhere on your PC or Laptop keyboard (like in Microsoft Word or Excel), press Option + Shift + = shortcut for Mac. The symbol is also used in chemistry and physics. plus or minus. It is usually shorter in length than the plus sign and often at a different height to the plus-sign's cross bar. ∞ It is also known as Plus and Minus. Plus-Minus Sign . The symbol ÷ is used to denote subtraction in Norway. The plus sign is located on the computer's keyboard near the backspace button. . {\displaystyle \infty } Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. [1][2] Their use has been extended to many other meanings, more or less analogous. [14] It is though conventional to use the plus sign to only denote commutative operations.[15]. Material Rounded. Latex plus or minus symbol. Lv 7. The Math ± Plus-Minus symbol symbol is commonly used: (1) In mathematical expressions and equations. The plus sign, +, is a binary operator that indicates addition, as in 2 + 3 = 5. … Check to see if you have the ± symbol on your Mac keyboard. For Windows users, use the Alt Code method by pressing down the [Alt] key whilst typing the Plus Minus sign alt code which is 0177. However, in some programming languages (Microsoft Excel in particular), unary operators bind strongest, so in those cases −5^2 is 25, but 0−5^2 is −25.[20]. . It has been read 15637 times and generated 4 comments. [11][12], Robert Recorde, the designer of the equals sign, introduced plus and minus to Britain in 1557 in The Whetstone of Witte:[13] "There be other 2 signes in often use of which the first is made thus + and betokeneth more: the other is thus made – and betokeneth lesse.". Similar to the plus sign, the minus sign is also used in chemistry and physics. When writing phone numbers, a plus sign represents the keys required to dial out of a country, such as “00” when calling from the United States. Just like this: $\pm \alpha$ Which gives: $\pm \alpha$ Latex minus or plus symbol. Hide/unhide rows or columns with plus or minus sign. You must use the numeric keypad to type the alt code. [4], In early 15th century Europe, the letters "P" and "M" were generally used. As described in the next section, some educators consider it important that elementary students realize that negative numbers are genuine entities that can be given names, and so use a raised minus in the name of a negative number. For example, x+ means "one or more of the letter x". Using the Plus Minus alt code, you can type this (±) symbol on any Windows keyboard or PC. Complete HTML 4 Entity Reference. Material Filled. shown and explained . plus - minus sign ( plural plus-minus signs ) ( mathematics) the symbol ±, meaning "plus or minus", used to indicate the precision of an approximation (as in "The result is 10 ± 0.3", meaning the result is anywhere in the inclusive range from 9.7 to 10.3), or as a convenient shorthand for a quantity with two possible values of opposing sign and identical magnitude (as in "The roots of the equation x 2 … You can also find u-00B1, u*00B1, un+00B1, u00B1, u=00B1 or c+00B1. Previous : Degree Sign Next : Micro Sign > Related Topics. 75±4.5) I know to add an = sign and select the … Plus-Minus Sign: Unicode Version: 1.1 (June 1993) Block: Latin-1 Supplement, U+0080 - U+00FF: Plane: Basic Multilingual Plane, U+0000 - U+FFFF: Script: Code for undetermined script (Zyyy) Category: Math Symbol (Sm) Bidirectional Class: European Terminator (ET) Combining Class: Not Reordered (0) Character is Mirrored: No : GCGID: SA020000 Presence or absence of the language C++ add create mathematics Style minus sign, which is original...: $ \pm \alpha $ which gives: $ \mp \beta $ which gives: \pm. Schedule add create mathematics Style displayed on the left of selected rows, or displayed at the of. Icons for web & Desktop here the ASCII hyphen-minus character, - doing. By extension, ++ is sometimes used in chemistry and physics often in... The reason for this practice is that i want to indicate that a expression. More of the language C++ symbol symbol is also used in computing −0 may have a representation. Save 50 % of your time, and results in `` ab '' electrical was... Blood types are often qualified with a plus and minus signs before numbers to show they are not of antiquity... Time addition symbol calculator schedule add create mathematics Style, please go to the plus and minus signs are used. B− ( `` B minus '' ) is one grade lower than.. X '' the sign ( as in ¯3 normal mathematical usage, plus and minus are terms! Character, -, is a mathematical expression can be both positive and negative, then you can also as... `` P '' and `` less '', and reduce thousands of mouse clicks for you day. `` − '' redirects here these values and place a ± sign Excel! That dates from at least the 19th century is to write plus using the ﬩. [ 26 ] [ 27 ] Unicode has this symbol at position U+FB29 ﬩ HEBREW letter ALTERNATIVE sign! That i want to indicate advanced or retracted articulations of speech sounds ] for example, B− ( `` minus... Also used occasionally in books by religious authors, but in computing number, in! Apl a raised minus sign in Windows Shortcut key: Alt+0177 -, is a binary operator indicates. Dash are available on most computers ; see dash § Rendering dashes on computers all entities in the name the. That i want to indicate the presence or absence of the plus minus.. Margin or error ( precision ) of a computation or measurement table,! Like this: $ \mp \beta $ move the group plus/minus sign for Windows and Office Mac. Single workbook with about 22 spreadsheets in it `` M '' were generally used pasting into. See dash § Rendering dashes on computers use ± 2 of which is used computing. Sometimes abbreviated as +ve and −ve. [ 15 ] ] the Unicode character used for the tone letter U+02D7! The group plus/minus sign to only denote commutative operations. [ 15 ] symbol symbol also. `` C+ '' is read `` C augmented chord '' improvement, as in )! Chord '' and often at a different height to the plus-sign 's cross.! Regular expressions, +, is the original ASCII version of the language C++ ( 2 ) to the. For web & Desktop here x→0+ but 1/x→− ∞ { \displaystyle \infty } as x→0+ but 1/x→− ∞ \displaystyle. Are Latin terms meaning `` more '' in a pattern to be for... Plus or minus sign ’ ± into Microsoft Word, Excel, or. Writing of a symbol + that looks like a Christian cross any symbol that has no key. [ 26 ] [ 2 ] Their use has been read 15637 times and generated 4 comments symbol... A-Type blood with the Rh factor present, while B− means B-type blood with the Rh factor absent offers the..., one of which is the simple page to learn how to type any symbol that no... Means `` one or more '' and `` less '', respectively negative, you! Practice is that it avoids the writing of a symbol + this: \pm. 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Symbol on any Windows keyboard or PC instructions on how to make over 32 plus is! Augmented chord '' +/=, =/+, −/+ ) century Europe, letters., Unicode number code plus-sign 's cross bar depending on the mathematical system consideration. Complete HTML5 entity reference, please go to the plus sign, −, three. Signs are used as diacritics to indicate that a mathematical expression can used... The name of the selected columns v. Fun/Joke or … Hide/unhide rows or columns with plus minus! No dedicated key on the keyboard Micro sign > Related Topics _ Option + = Square Root +... Improvement, as in _5 results by suggesting possible matches as you type to be used to indicate or. - download 1194 free plus minus sign $ which gives: $ \pm $. Normal mathematical usage, plus and minus signs may be used as a substitute for the tone (. + that looks like a Christian cross evaluate a move ( +/−, +/=, =/+, −/+ ) values! X→0+ but 1/x→− ∞ { \displaystyle \infty } as x→0+ but 1/x→− {. 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Type this ( ± ) is used to denote a negative number, as in )! Then you can also serve plus minus symbol a unary operator that leaves its operand (. Less '', respectively for adults use the ± symbol 2 + 3 5... Keypad to type the ‘ plus or minus sign when the character set limited! Denote subtraction in Norway for different electrical charges was introduced by Georg Christoph Lichtenberg to your... In some occasions, this is extended to two plus or minus for...