Knowledge (XXG)

Plus–minus sign

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When the standard presumption that the plus-or-minus signs all take on the same value of +1 or all −1 is not true, then the line of text that immediately follows the equation must contain a brief description of the actual connection, if any, most often of the form
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Heit, J. A.; Silverstein, M. D.; Mohr, D. N.; Petterson, T. M.; O'Fallon, W. M.; Melton, L. J. (1999-03-08). "Predictors of survival after deep vein thrombosis and pulmonary embolism: a population-based, cohort study".
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may be anywhere in the range from 5.5 to 5.9 inclusive. In scientific usage, it sometimes refers to a probability of being within the stated interval, usually corresponding to either 1 or 2 
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Naess, I. A.; Christiansen, S. C.; Romundstad, P.; Cannegieter, S. C.; Rosendaal, F. R.; Hammerstrøm, J. (2007). "Incidence and mortality of venous thrombosis: a population-based study".
3560: 1860: ), this is discouraged because the formatting may be stripped at a later date, changing the meaning. It also makes the meaning less accessible to blind users with 2414: 1480:
or similar. If a brief, simple description is not possible, the equation must be re-written to provide clarity; e.g. by introducing variables such as
2875: 1442:{\displaystyle \sin \left(x\right)=x-{\frac {x^{3}}{3!}}+{\frac {x^{5}}{5!}}-{\frac {x^{7}}{7!}}+\cdots \pm {\frac {1}{(2n+1)!}}x^{2n+1}+\cdots } 1253:{\displaystyle {\begin{aligned}x^{3}+y^{3}&=(x+y)\left((x-y)^{2}+xy\right)\\x^{3}-y^{3}&=(x-y)\left((x+y)^{2}-xy\right)\end{aligned}}} 957: 1456:
is odd or even; a rule which can be deduced from the first few terms. A more rigorous presentation would multiply each term by a factor of
2158: 934:{\displaystyle {\begin{aligned}\cos(A+B)&=\cos(A)\cos(B)-\sin(A)\sin(B)\\\cos(A-B)&=\cos(A)\cos(B)+\sin(A)\sin(B)\end{aligned}}} 1709:, this sign may indicate a dual voltage power supply, such as ±5 volts means +5 volts and −5 volts, when used with audio circuits and 154: 2381: 2248: 1691:, which is the range of values that are considered to be acceptable or safe, or which comply with some standard or with a contract. 623: 387: 3291: 2407: 1651:
to denote a moderate but significant advantage for White and Black, respectively. Weaker and stronger advantages are denoted by
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Other meanings occur in other fields, including medicine, engineering, chemistry, electronics, linguistics, and philosophy.
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for an approximation is most commonly encountered in presenting the numerical value of a quantity, together with its
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Operations involving uncertain values should always try to preserve the uncertainty, in order to avoid
1498:, ... and specifying a value of +1 or −1 separately for each, or some appropriate relation, like 3651: 3605: 3588: 3474: 3049: 2392: 2125: 1809:
The rarer minus–plus sign is not generally found in legacy encodings, but is available in Unicode as
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Here, the plus-or-minus sign indicates that the term may be added or subtracted depending on whether
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Brown, George W. (1982). "Standard deviation, standard error: Which 'standard' should we use?".
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for a strong, potentially winning advantage, again for White and Black respectively.
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A History of Mathematical Notations, Volume I: Notations in Elementary Mathematics
2992: 2928: 2913: 2856: 2424: 1937: 1783: 1778: 1774: 1770: 1717: 1706: 1684: 131: 123: 2342: 172:, the sign indicates a clear advantage for the white player; the complementary 3432: 3234: 3162: 2526: 2428: 2102: 2092: 2082: 1974: 1766: 1762: 1758: 1754: 231:
symbol may be used to indicate a symbol that may be replaced by either of the
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Although these characters may be approximated by underlining or overlining a
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in 1626, and the sign in its modern form was used as early as 1631, in
42: 1046:{\displaystyle x^{3}\pm y^{3}=(x\pm y)\left((x\mp y)^{2}\pm xy\right)} 98: 2738: 2507: 1263:
A related usage is found in this presentation of the formula for the
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can be interpreted as a shorthand for two equations: one with
717:{\displaystyle \cos(A\pm B)=\cos(A)\cos(B)\mp \sin(A)\sin(B)} 481:{\displaystyle \sin(A\pm B)=\sin(A)\cos(B)\pm \cos(A)\sin(B)} 348:{\displaystyle x={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}},} 1837:'plus-or-minus' and 'minus-or-plus' symbols are denoted 260:. This indicates that the equation has two solutions: 194:
A version of the sign, including also the French word
1276: 1065: 960: 736: 626: 390: 286: 2243:(2nd ed.), John Wiley & Sons, p. 272, 2061: 72: 67: 40: 33: 28: 1441: 1252: 1045: 933: 716: 480: 347: 182:indicates the same advantage for the black player. 274:. A common use of this notation is found in the 198:("or"), was used in its mathematical meaning by 1680:, it may mean "with or without" in some cases. 1468:is odd. In older texts one occasionally finds 2408: 2096: 2086: 2076: 8: 510:, is generally used in conjunction with the 495:on both sides of the equation, and one with 2415: 2401: 2393: 2265:Chess annotation symbols § Positions 2095:), whereas the minus–plus sign resembles 1418: 1384: 1359: 1353: 1334: 1328: 1309: 1303: 1275: 1226: 1177: 1164: 1136: 1087: 1074: 1066: 1064: 1023: 978: 965: 959: 737: 735: 625: 598:The above expression can be rewritten as 389: 358:which describes the two solutions to the 311: 305: 293: 285: 3561:Version of this table as a sortable list 2204:American Journal of Diseases of Children 2052: 2049: 2046: 2043: 2040: 2037: 2033: 2029: 2026: 2023: 2020: 2016: 2012: 2009: 2006: 2003: 1999: 1995: 1992: 1989: 1985: 1970: 1967: 1964: 1958: 1954: 1950: 1946: 1942: 1936: 1926: 1922: 1918: 1907: 1904: 1901: 1898: 1894: 1890: 1887: 1884: 1878: 2146: 1929:(equal sign on the non-numeric keypad). 90:∓, ∓, ∓ 61:±, ±, ± 1787:. This location was copied to Unicode. 1550:(a probability of 68.3% or 95.4% in a 528:, which can be interpreted as meaning 118:, is a symbol with multiple meanings. 25: 2279:Journal of Thrombosis and Haemostasis 1478:"where the ‘±’ signs are independent" 7: 3413: ⟨ ⟩  2374:Linguistics, A Complete Introduction 2216:10.1001/archpedi.1982.03970460067015 1781:, the plus–minus symbol is code 0xB1 1056:which represents the two equations: 727:which represents the two equations: 16:Symbol combining both + and - signs 2072:The plus–minus sign resembles the 591:always has the opposite sign to 145:, the sign commonly indicates the 14: 1698:, the sign is used to indicate a 1659:for only a slight advantage, and 2291:10.1111/j.1538-7836.2007.02450.x 1590:must return a value of the form 2179:"Definition of PLUS/MINUS SIGN" 253:, one may give the solution as 1405: 1390: 1223: 1210: 1202: 1190: 1133: 1120: 1112: 1100: 1020: 1007: 999: 987: 924: 918: 909: 903: 891: 885: 876: 870: 854: 842: 829: 823: 814: 808: 796: 790: 781: 775: 759: 747: 711: 705: 696: 690: 678: 672: 663: 657: 645: 633: 475: 469: 460: 454: 442: 436: 427: 421: 409: 397: 1: 2331:Archives of Internal Medicine 2136:Table of mathematical symbols 1822:so can be used in HTML using 514:sign, in such expressions as 153:bounding a range of possible 1575:, any operation of the form 157:in a measurement, often the 1464:is even, and −1 when 21:Plus–minus (disambiguation) 3668: 2876:inverted ! and ? 2343:10.1001/archinte.159.5.445 18: 3556: 3444: 3348: 3292:sound recording copyright 3246: 3151: 3034: 2902: 2815: 2750: 2576: 2436: 2097: 2087: 2077: 1687:, the sign indicates the 2117:(approximately equal to) 1472:, which means the same. 944:Another example is the 3409: { }  3401: ( )  3386: « »  3382: ‹ ›  3367: " "  3363: ' '  3359: “ ”  3355: ‘ ’  2163:, Open Court, p.  1910:(numbers typed on the 1790:The symbol also has a 1711:operational amplifiers 1460:, which gives +1 when 1443: 1267:of the sine function: 1254: 1047: 935: 718: 482: 380:trigonometric identity 349: 130:and the other through 103: 3637:Elementary arithmetic 2121:Engineering tolerance 1444: 1255: 1048: 936: 719: 483: 350: 225:mathematical formulas 143:experimental sciences 101: 3642:Mathematical symbols 3606:Japanese punctuation 3307:registered trademark 3192: |  3050:plus and minus signs 2443:    2237:Eade, James (2005), 2126:Plus and minus signs 1720:, it may indicate a 1559:propagation of error 1274: 1063: 958: 734: 624: 388: 284: 233:plus and minus signs 19:For other uses, see 3596:Chinese punctuation 3322:service mark symbol 3065:multiplication sign 2583: &  2183:merriam-webster.com 1794:representations of 1722:distinctive feature 1629:interval arithmetic 1552:normal distribution 1548:standard deviations 1538:or its statistical 208:Clavis Mathematicae 147:confidence interval 3647:Sign (mathematics) 3611:Korean punctuation 3601:Hebrew punctuation 2131:Sign (mathematics) 2074:Chinese characters 2068:Similar characters 1984:(in Insert mode): 1820:MINUS-OR-PLUS SIGN 1439: 1250: 1248: 1043: 931: 929: 714: 478: 360:quadratic equation 345: 159:standard deviation 112:plus-or-minus sign 104: 102:Plus or minus sign 86:MINUS-OR-PLUS SIGN 3619: 3618: 2948:ordinal indicator 2891:irony punctuation 2263:For details, see 2240:Chess For Dummies 2060:shortcut string: 1973:(second works on 1412: 1373: 1348: 1323: 340: 329: 276:quadratic formula 96: 95: 3659: 3568:Currency symbols 3548: 3547: 3541: 3533: 3532: 3531:(paragraph mark) 3525: 3521: 3513: 3512: 3506: 3502: 3494: 3493: 3487: 3479: 3478: 3471: 3463: 3462: 3456: 3452: 3436: 3435: 3429: 3421: 3420: 3414: 3410: 3406: 3402: 3394: 3393: 3387: 3383: 3375: 3374: 3368: 3364: 3360: 3356: 3340: 3339: 3337:trademark symbol 3333: 3325: 3324: 3318: 3310: 3309: 3303: 3295: 3294: 3288: 3280: 3279: 3273: 3271: 3261: 3260: 3258:copyright symbol 3254: 3238: 3237: 3231: 3223: 3222: 3216: 3208: 3207: 3201: 3197: 3193: 3185: 3184: 3178: 3176: 3166: 3165: 3159: 3143: 3142: 3136: 3128: 3127: 3121: 3113: 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2151: 2100: 2099: 2090: 2089: 2080: 2079: 2063: 1963: 1859: 1855: 1851: 1844: 1840: 1829: 1825: 1821: 1818: 1815: 1813: 1805: 1801: 1797: 1750: 1747: 1744: 1742: 1666: 1662: 1658: 1654: 1649:chess annotation 1646: 1642: 1626: 1622: 1618: 1607: 1603: 1589: 1574: 1545: 1533: 1521: 1497: 1488: 1471: 1467: 1463: 1459: 1455: 1448: 1446: 1445: 1440: 1432: 1431: 1413: 1411: 1385: 1374: 1372: 1364: 1363: 1354: 1349: 1347: 1339: 1338: 1329: 1324: 1322: 1314: 1313: 1304: 1293: 1259: 1257: 1256: 1251: 1249: 1245: 1241: 1231: 1230: 1182: 1181: 1169: 1168: 1155: 1151: 1141: 1140: 1092: 1091: 1079: 1078: 1052: 1050: 1049: 1044: 1042: 1038: 1028: 1027: 983: 982: 970: 969: 940: 938: 937: 932: 930: 723: 721: 720: 715: 616: 613:to avoid use of 612: 594: 590: 586: 572: 555: 541: 527: 513: 509: 498: 494: 487: 485: 484: 479: 375: 354: 352: 351: 346: 341: 339: 331: 330: 316: 315: 306: 294: 273: 266: 259: 252: 242: 238: 230: 204:William Oughtred 180: 117: 91: 87: 84: 81: 79: 62: 58: 55: 52: 50: 26: 3667: 3666: 3662: 3661: 3660: 3658: 3657: 3656: 3622: 3621: 3620: 3615: 3552: 3543: 3540: §  3539: 3537: 3527: 3524: ⸿  3523: 3520: ¶  3519: 3517: 3508: 3505: ⌑  3504: 3501: ◊  3500: 3498: 3489: 3486: ☞  3485: 3483: 3477:(hedera, aldus) 3473: 3470: ❧  3469: 3467: 3458: 3455: ‡  3454: 3451: †  3450: 3448: 3440: 3431: 3428: ”  3427: 3425: 3416: 3412: 3408: 3404: 3400: 3398: 3389: 3385: 3381: 3379: 3370: 3366: 3362: 3358: 3354: 3352: 3344: 3335: 3331: 3329: 3320: 3316: 3314: 3305: 3302: ®  3301: 3299: 3290: 3287: ℗  3286: 3284: 3275: 3269: 3267: 3265: 3256: 3253: ©  3252: 3250: 3242: 3233: 3230: ·  3229: 3227: 3218: 3215: •  3214: 3212: 3203: 3200: ‖  3199: 3196: ¦  3195: 3191: 3189: 3180: 3174: 3172: 3170: 3161: 3158: _  3157: 3155: 3147: 3138: 3135: ^  3134: 3132: 3125:minus-plus sign 3123: 3120: ∓  3119: 3117: 3110:plus–minus sign 3108: 3105: ±  3104: 3102: 3093: 3090: ~  3089: 3087: 3078: 3075: ÷  3074: 3072: 3063: 3060: ×  3059: 3057: 3048: 3045: −  3044: 3041: +  3040: 3038: 3030: 3021: 3018: ⌀  3017: 3015: 3006: 3003: °  3002: 3000: 2991: 2988: ‱  2987: 2985: 2976: 2973: ‰  2972: 2970: 2961: 2958: %  2957: 2955: 2946: 2943: ª  2942: 2939: º  2938: 2936: 2927: 2924: №  2923: 2921: 2912: 2909: #  2908: 2906: 2898: 2889: 2886: ⸮  2885: 2883: 2874: 2871: ¿  2870: 2867: ¡  2866: 2864: 2855: 2852: ‽  2851: 2849: 2840: 2837: !  2836: 2834: 2825: 2822: ?  2821: 2819: 2811: 2802: 2799: ⸗  2798: 2795: ⹀  2794: 2792: 2783: 2780: —  2779: 2776: –  2775: 2772: ‒  2771: 2769: 2760: 2757: -  2756: 2754: 2746: 2737: 2731: 2728: 2725: 2721: 2718: 2714: 2711: 2707: 2704: 2702: 2700: 2691: 2688: ⁂  2687: 2685: 2676: 2673: *  2672: 2670: 2661: 2658: …  2657: 2655: 2646: 2643: \  2642: 2640: 2631: 2628: /  2627: 2625: 2616: 2613: ^  2612: 2610: 2601: 2598: @  2597: 2595: 2586: 2582: 2580: 2572: 2563: 2560: .  2559: 2557: 2548: 2545: ‴  2544: 2541: ″  2540: 2537: ′  2536: 2534: 2525: 2522: '  2521: 2518: ’  2517: 2515: 2506: 2503: ‐  2502: 2500: 2491: 2488: ;  2487: 2485: 2476: 2473: :  2472: 2470: 2461: 2458: ,  2457: 2455: 2446: 2442: 2440: 2432: 2421: 2391: 2384: 2371: 2370: 2366: 2327: 2326: 2322: 2276: 2275: 2271: 2262: 2258: 2251: 2236: 2235: 2231: 2210:(10): 937–941. 2201: 2200: 2196: 2187: 2185: 2177: 2176: 2172: 2155:Cajori, Florian 2153: 2152: 2148: 2144: 2111: 2070: 2054: 2051: 2048: 2045: 2042: 2039: 2035: 2031: 2028: 2025: 2022: 2018: 2014: 2011: 2008: 2005: 2001: 1997: 1994: 1991: 1987: 1982:Vim text editor 1972: 1969: 1966: 1961: 1960: 1956: 1952: 1948: 1944: 1940: 1928: 1924: 1920: 1909: 1906: 1903: 1900: 1896: 1892: 1889: 1886: 1882: 1871: 1857: 1853: 1849: 1845:, respectively. 1842: 1838: 1827: 1823: 1819: 1816: 1811: 1810: 1803: 1799: 1795: 1786: 1749:PLUS-MINUS SIGN 1748: 1745: 1740: 1739: 1731: 1700:racemic mixture 1673: 1664: 1660: 1656: 1652: 1644: 1640: 1637: 1624: 1620: 1609: 1605: 1591: 1576: 1562: 1543: 1542:. For example, 1540:margin of error 1531: 1528: 1519: 1512: 1505: 1499: 1496: 1490: 1487: 1481: 1469: 1465: 1461: 1457: 1453: 1414: 1389: 1365: 1355: 1340: 1330: 1315: 1305: 1283: 1272: 1271: 1247: 1246: 1222: 1209: 1205: 1183: 1173: 1160: 1157: 1156: 1132: 1119: 1115: 1093: 1083: 1070: 1061: 1060: 1019: 1006: 1002: 974: 961: 956: 955: 950:perfect squares 928: 927: 857: 833: 832: 762: 732: 731: 622: 621: 614: 599: 592: 588: 574: 560: 543: 529: 515: 511: 507: 504:minus–plus sign 499:on both sides. 496: 492: 386: 385: 378:Similarly, the 362: 332: 307: 295: 282: 281: 268: 261: 254: 247: 240: 236: 228: 221: 216: 192: 178: 174:minus-plus sign 115: 108:plus–minus sign 89: 85: 82: 77: 76: 60: 57:PLUS-MINUS SIGN 56: 53: 48: 47: 36: 35:Plus–minus sign 24: 17: 12: 11: 5: 3665: 3663: 3655: 3654: 3649: 3644: 3639: 3634: 3624: 3623: 3617: 3616: 3614: 3613: 3608: 3603: 3598: 3592: 3591: 3586: 3581: 3576: 3570: 3564: 3563: 3557: 3554: 3553: 3551: 3550: 3535: 3515: 3496: 3481: 3465: 3445: 3442: 3441: 3439: 3438: 3423: 3405:   3396: 3377: 3372:quotation mark 3349: 3346: 3345: 3343: 3342: 3332:   3327: 3317:   3312: 3297: 3282: 3263: 3247: 3244: 3243: 3241: 3240: 3225: 3210: 3187: 3168: 3152: 3149: 3148: 3146: 3145: 3130: 3115: 3100: 3085: 3070: 3055: 3035: 3032: 3031: 3029: 3028: 3013: 2998: 2983: 2968: 2953: 2934: 2919: 2903: 2900: 2899: 2897: 2896: 2881: 2862: 2847: 2832: 2816: 2813: 2812: 2810: 2809: 2790: 2767: 2751: 2748: 2747: 2745: 2744: 2698: 2683: 2668: 2653: 2638: 2623: 2608: 2593: 2577: 2574: 2573: 2571: 2570: 2555: 2532: 2513: 2498: 2483: 2468: 2453: 2437: 2434: 2433: 2422: 2420: 2419: 2412: 2405: 2397: 2390: 2389: 2382: 2376:. p. 99. 2364: 2337:(5): 445–453. 2320: 2285:(4): 692–699. 2269: 2256: 2249: 2229: 2194: 2170: 2145: 2143: 2140: 2139: 2138: 2133: 2128: 2123: 2118: 2110: 2107: 2069: 2066: 2065: 2064: 2055: 1978: 1930: 1915: 1912:numeric keypad 1870: 1867: 1866: 1865: 1862:screen readers 1852:symbol (  1846: 1831: 1807: 1788: 1782: 1751: 1730: 1727: 1726: 1725: 1714: 1703: 1692: 1681: 1672: 1671:Other meanings 1669: 1636: 1633: 1627:updated using 1527: 1524: 1517: 1510: 1503: 1494: 1485: 1450: 1449: 1438: 1435: 1430: 1427: 1424: 1421: 1417: 1410: 1407: 1404: 1401: 1398: 1395: 1392: 1388: 1383: 1380: 1377: 1371: 1368: 1362: 1358: 1352: 1346: 1343: 1337: 1333: 1327: 1321: 1318: 1312: 1308: 1302: 1299: 1296: 1292: 1289: 1286: 1282: 1279: 1261: 1260: 1244: 1240: 1237: 1234: 1229: 1225: 1221: 1218: 1215: 1212: 1208: 1204: 1201: 1198: 1195: 1192: 1189: 1186: 1184: 1180: 1176: 1172: 1167: 1163: 1159: 1158: 1154: 1150: 1147: 1144: 1139: 1135: 1131: 1128: 1125: 1122: 1118: 1114: 1111: 1108: 1105: 1102: 1099: 1096: 1094: 1090: 1086: 1082: 1077: 1073: 1069: 1068: 1054: 1053: 1041: 1037: 1034: 1031: 1026: 1022: 1018: 1015: 1012: 1009: 1005: 1001: 998: 995: 992: 989: 986: 981: 977: 973: 968: 964: 942: 941: 926: 923: 920: 917: 914: 911: 908: 905: 902: 899: 896: 893: 890: 887: 884: 881: 878: 875: 872: 869: 866: 863: 860: 858: 856: 853: 850: 847: 844: 841: 838: 835: 834: 831: 828: 825: 822: 819: 816: 813: 810: 807: 804: 801: 798: 795: 792: 789: 786: 783: 780: 777: 774: 771: 768: 765: 763: 761: 758: 755: 752: 749: 746: 743: 740: 739: 725: 724: 713: 710: 707: 704: 701: 698: 695: 692: 689: 686: 683: 680: 677: 674: 671: 668: 665: 662: 659: 656: 653: 650: 647: 644: 641: 638: 635: 632: 629: 559: 489: 488: 477: 474: 471: 468: 465: 462: 459: 456: 453: 450: 447: 444: 441: 438: 435: 432: 429: 426: 423: 420: 417: 414: 411: 408: 405: 402: 399: 396: 393: 356: 355: 344: 338: 335: 328: 325: 322: 319: 314: 310: 304: 301: 298: 292: 289: 220: 219:In mathematics 217: 215: 212: 191: 188: 184: 183: 166: 163:standard error 135: 94: 93: 74: 70: 69: 65: 64: 45: 38: 37: 34: 31: 30: 15: 13: 10: 9: 6: 4: 3: 2: 3664: 3653: 3650: 3648: 3645: 3643: 3640: 3638: 3635: 3633: 3630: 3629: 3627: 3612: 3609: 3607: 3604: 3602: 3599: 3597: 3594: 3593: 3590: 3587: 3585: 3582: 3580: 3579:Logic symbols 3577: 3574: 3571: 3569: 3566: 3565: 3562: 3559: 3558: 3555: 3546: 3542:   3536: 3530: 3526:   3516: 3511: 3507:   3497: 3492: 3488:   3482: 3476: 3472:   3466: 3461: 3457:   3447: 3446: 3443: 3434: 3430:   3424: 3419: 3415:   3397: 3392: 3388:   3378: 3373: 3369:   3351: 3350: 3347: 3338: 3334:   3328: 3323: 3319:   3313: 3308: 3304:   3298: 3293: 3289:   3283: 3278: 3274:   3264: 3259: 3255:   3249: 3248: 3245: 3236: 3232:   3226: 3221: 3217:   3211: 3206: 3202:   3188: 3183: 3179:   3169: 3164: 3160:   3154: 3153: 3150: 3141: 3137:   3131: 3126: 3122:   3116: 3111: 3107:   3101: 3096: 3092:   3086: 3081: 3080:division sign 3077:   3071: 3066: 3062:   3056: 3051: 3047:   3037: 3036: 3033: 3024: 3023:diameter sign 3020:   3014: 3009: 3008:degree symbol 3005:   2999: 2994: 2990:   2984: 2979: 2975:   2969: 2964: 2960:   2954: 2949: 2945:   2935: 2930: 2926:   2920: 2915: 2911:   2905: 2904: 2901: 2892: 2888:   2882: 2877: 2873:   2863: 2858: 2854:   2848: 2843: 2839:   2833: 2828: 2827:question mark 2824:   2818: 2817: 2814: 2805: 2804:double hyphen 2801:   2791: 2786: 2782:   2768: 2763: 2759:   2753: 2752: 2749: 2740: 2736:   2699: 2694: 2690:   2684: 2679: 2675:   2669: 2664: 2660:   2654: 2649: 2645:   2639: 2634: 2630:   2624: 2619: 2615:   2609: 2604: 2600:   2594: 2589: 2585:   2579: 2578: 2575: 2566: 2562:   2556: 2551: 2547:   2533: 2528: 2524:   2514: 2509: 2505:   2499: 2494: 2490:   2484: 2479: 2475:   2469: 2464: 2460:   2454: 2449: 2445:   2439: 2438: 2435: 2430: 2429:typographical 2426: 2418: 2413: 2411: 2406: 2404: 2399: 2398: 2395: 2385: 2383:9781444180336 2379: 2375: 2368: 2365: 2360: 2356: 2352: 2348: 2344: 2340: 2336: 2332: 2324: 2321: 2316: 2312: 2308: 2304: 2300: 2296: 2292: 2288: 2284: 2280: 2273: 2270: 2266: 2260: 2257: 2252: 2250:9780471774334 2246: 2242: 2241: 2233: 2230: 2225: 2221: 2217: 2213: 2209: 2205: 2198: 2195: 2184: 2180: 2174: 2171: 2166: 2162: 2161: 2156: 2150: 2147: 2141: 2137: 2134: 2132: 2129: 2127: 2124: 2122: 2119: 2116: 2113: 2112: 2108: 2106: 2104: 2094: 2084: 2075: 2067: 2059: 2056: 1983: 1979: 1976: 1939: 1934: 1931: 1916: 1913: 1881: 1876: 1873: 1872: 1868: 1863: 1847: 1836: 1832: 1808: 1793: 1789: 1785: 1780: 1776: 1772: 1768: 1764: 1760: 1756: 1752: 1737: 1733: 1732: 1728: 1723: 1719: 1715: 1712: 1708: 1704: 1701: 1697: 1693: 1690: 1686: 1682: 1679: 1675: 1674: 1670: 1668: 1650: 1634: 1632: 1630: 1623:is the range 1616: 1612: 1602: 1598: 1594: 1587: 1583: 1579: 1573: 1569: 1565: 1560: 1555: 1553: 1549: 1541: 1537: 1526:In statistics 1525: 1523: 1516: 1509: 1502: 1493: 1484: 1479: 1473: 1436: 1433: 1428: 1425: 1422: 1419: 1415: 1408: 1402: 1399: 1396: 1393: 1386: 1381: 1378: 1375: 1369: 1366: 1360: 1356: 1350: 1344: 1341: 1335: 1331: 1325: 1319: 1316: 1310: 1306: 1300: 1297: 1294: 1290: 1287: 1284: 1280: 1277: 1270: 1269: 1268: 1266: 1265:Taylor series 1242: 1238: 1235: 1232: 1227: 1219: 1216: 1213: 1206: 1199: 1196: 1193: 1187: 1185: 1178: 1174: 1170: 1165: 1161: 1152: 1148: 1145: 1142: 1137: 1129: 1126: 1123: 1116: 1109: 1106: 1103: 1097: 1095: 1088: 1084: 1080: 1075: 1071: 1059: 1058: 1057: 1039: 1035: 1032: 1029: 1024: 1016: 1013: 1010: 1003: 996: 993: 990: 984: 979: 975: 971: 966: 962: 954: 953: 952: 951: 947: 921: 915: 912: 906: 900: 897: 894: 888: 882: 879: 873: 867: 864: 861: 859: 851: 848: 845: 839: 836: 826: 820: 817: 811: 805: 802: 799: 793: 787: 784: 778: 772: 769: 766: 764: 756: 753: 750: 744: 741: 730: 729: 728: 708: 702: 699: 693: 687: 684: 681: 675: 669: 666: 660: 654: 651: 648: 642: 639: 636: 630: 627: 620: 619: 618: 610: 606: 602: 596: 585: 581: 577: 571: 567: 563: 557: 554: 550: 546: 540: 536: 532: 526: 522: 518: 505: 500: 472: 466: 463: 457: 451: 448: 445: 439: 433: 430: 424: 418: 415: 412: 406: 403: 400: 394: 391: 384: 383: 382: 381: 376: 373: 369: 365: 361: 342: 336: 333: 326: 323: 320: 317: 312: 308: 302: 299: 296: 290: 287: 280: 279: 278: 277: 271: 264: 257: 250: 244: 234: 226: 218: 213: 211: 209: 205: 201: 200:Albert Girard 197: 189: 187: 181: 175: 171: 167: 164: 160: 156: 152: 148: 144: 140: 136: 133: 129: 125: 121: 120: 119: 113: 109: 100: 75: 71: 66: 46: 44: 39: 32: 27: 22: 3584:Math symbols 3545:section mark 3205:vertical bar 3109: 2963:percent sign 2762:hyphen-minus 2373: 2367: 2334: 2330: 2323: 2282: 2278: 2272: 2259: 2239: 2232: 2207: 2203: 2197: 2186:. Retrieved 2182: 2173: 2159: 2149: 2071: 1824:∓ 1800:± 1647:are used in 1639:The symbols 1638: 1614: 1610: 1600: 1596: 1592: 1585: 1581: 1577: 1571: 1567: 1563: 1556: 1529: 1522:or similar. 1514: 1507: 1500: 1491: 1482: 1477: 1474: 1451: 1262: 1055: 943: 726: 608: 604: 600: 597: 583: 579: 575: 569: 565: 561: 552: 548: 544: 538: 534: 530: 524: 520: 516: 503: 501: 490: 377: 371: 367: 363: 357: 269: 262: 255: 248: 245: 222: 207: 195: 193: 185: 177: 111: 107: 105: 3652:Subtraction 2993:basis point 2929:numero sign 2914:number sign 2857:interrobang 2425:punctuation 1917:Macintosh: 1828:∓ 1792:HTML entity 1724:, such as . 1718:linguistics 1707:electronics 1685:engineering 1530:The use of 151:uncertainty 132:subtraction 124:mathematics 3626:Categories 3589:Whitespace 3573:Diacritics 3433:ditto mark 3235:interpunct 3163:underscore 2527:apostrophe 2427:and other 2188:2020-08-28 2142:References 2103:Radical 51 2093:Radical 33 2083:Radical 32 1975:Chromebook 1856:  or 1804:± 1755:ISO 8859-1 1458:(−1) 139:statistics 3575:(accents) 3391:guillemet 2978:per mille 2648:backslash 2588:ampersand 2565:full stop 2493:semicolon 2351:0003-9926 2299:1538-7933 1935:systems: 1933:Unix-like 1729:Encodings 1696:chemistry 1689:tolerance 1544:5.7 ± 0.2 1536:tolerance 1470:(−) 1437:⋯ 1382:± 1379:⋯ 1351:− 1301:− 1281:⁡ 1233:− 1197:− 1171:− 1127:− 1030:± 1014:∓ 994:± 972:± 946:conjugate 916:⁡ 901:⁡ 883:⁡ 868:⁡ 849:− 840:⁡ 821:⁡ 806:⁡ 800:− 788:⁡ 773:⁡ 745:⁡ 703:⁡ 688:⁡ 682:∓ 670:⁡ 655:⁡ 640:± 631:⁡ 467:⁡ 452:⁡ 446:± 434:⁡ 419:⁡ 404:± 395:⁡ 318:− 303:± 297:− 3632:Addition 3491:manicule 3277:copyleft 2693:asterism 2678:asterisk 2663:ellipsis 2359:10074952 2315:23648224 2307:17367492 2157:(1928), 2109:See also 1919:⌥ Option 1817:∓ 1796:± 1678:medicine 1635:In chess 1604:, where 128:addition 83:∓ 73:See also 41:In  3529:pilcrow 3510:lozenge 3475:fleuron 3418:bracket 3272:  3268:  3177:  3173:  2734:  2703:  2603:at sign 2431:symbols 2423:Common 2224:7124681 2058:AutoCAD 1980:In the 1951:⇧ Shift 1938:Compose 1923:⇧ Shift 1875:Windows 1736:Unicode 948:of the 587:). The 190:History 68:Related 43:Unicode 3549:  3538:  3534:  3522:  3518:  3514:  3503:  3499:  3495:  3484:  3480:  3468:  3464:  3460:dagger 3453:  3449:  3437:  3426:  3422:  3411:  3407:  3403:  3399:  3395:  3384:  3380:  3376:  3365:  3361:  3357:  3353:  3341:  3330:  3326:  3315:  3311:  3300:  3296:  3285:  3281:  3266:  3262:  3251:  3239:  3228:  3224:  3220:bullet 3213:  3209:  3198:  3194:  3190:  3186:  3171:  3167:  3156:  3144:  3133:  3129:  3118:  3114:  3103:  3099:  3088:  3084:  3073:  3069:  3058:  3054:  3043:  3039:  3027:  3016:  3012:  3001:  2997:  2986:  2982:  2971:  2967:  2956:  2952:  2941:  2937:  2933:  2922:  2918:  2907:  2895:  2884:  2880:  2869:  2865:  2861:  2850:  2846:  2835:  2831:  2820:  2808:  2797:  2793:  2789:  2778:  2774:  2770:  2766:  2755:  2743:  2739:dinkus 2732:  2729:  2726:  2722:  2719:  2715:  2712:  2708:  2705:  2701:  2697:  2686:  2682:  2671:  2667:  2656:  2652:  2641:  2637:  2626:  2622:  2611:  2607:  2596:  2592:  2581:  2569:  2558:  2554:  2543:  2539:  2535:  2531:  2520:  2516:  2512:  2508:hyphen 2501:  2497:  2486:  2482:  2471:  2467:  2456:  2452:  2441:  2380:  2357:  2349:  2313:  2305:  2297:  2247:  2222:  2085:) and 1962:  1869:Typing 1814: 1812:U+2213 1802:, and 1777:, and 1746:± 1743: 1741:U+00B1 227:, the 155:errors 80: 78:U+2213 54:± 51: 49:U+00B1 3140:caret 3095:tilde 2633:slash 2618:caret 2550:prime 2478:colon 2463:comma 2448:space 2311:S2CID 1971:space 1561:. If 556:(but 214:Usage 170:chess 2785:dash 2378:ISBN 2355:PMID 2347:ISSN 2303:PMID 2295:ISSN 2245:ISBN 2220:PMID 2034:Ctrl 2017:Ctrl 2000:Ctrl 1986:Ctrl 1955:Ctrl 1841:and 1663:and 1655:and 1643:and 1619:and 502:The 374:= 0. 272:= −3 267:and 265:= +3 258:= ±3 141:and 106:The 3182:tie 2339:doi 2335:159 2287:doi 2212:doi 2208:136 2165:245 2105:). 2062:%%p 2032:or 2015:or 1998:or 1949:or 1895:Alt 1893:or 1880:Alt 1843:\mp 1839:\pm 1835:TeX 1833:In 1826:or 1784:hex 1779:-16 1775:-15 1771:-13 1753:In 1734:In 1716:In 1705:In 1694:In 1683:In 1676:In 1608:is 1554:). 1513:· ( 1278:sin 913:sin 898:sin 880:cos 865:cos 837:cos 818:sin 803:sin 785:cos 770:cos 742:cos 700:sin 685:sin 667:cos 652:cos 628:cos 603:± ( 573:or 558:not 542:or 464:sin 449:cos 431:cos 416:sin 392:sin 251:= 9 246:If 239:or 223:In 206:'s 168:In 161:or 149:or 137:In 122:In 110:or 3628:: 2353:. 2345:. 2333:. 2309:. 2301:. 2293:. 2281:. 2218:. 2206:. 2181:. 1914:). 1877:: 1798:, 1773:, 1769:, 1767:-9 1765:, 1763:-8 1761:, 1759:-7 1757:, 1738:: 1665:–+ 1661:+– 1631:. 1599:± 1595:= 1580:= 1570:± 1566:= 1506:= 1489:, 607:− 595:. 582:− 578:− 568:+ 564:+ 551:+ 547:− 537:− 533:+ 523:∓ 519:± 506:, 370:+ 368:bx 366:+ 364:ax 235:, 210:. 196:ou 176:, 114:, 3270:© 3175:⁀ 2724:* 2717:* 2710:* 2416:e 2409:t 2402:v 2386:. 2361:. 2341:: 2317:. 2289:: 2283:5 2267:. 2254:. 2226:. 2214:: 2191:. 2168:. 2115:≈ 2101:( 2098:干 2091:( 2088:士 2081:( 2078:土 2053:1 2050:B 2047:0 2044:0 2041:u 2038:v 2036:+ 2030:1 2027:B 2024:x 2021:v 2019:+ 2013:7 2010:7 2007:1 2004:v 2002:+ 1996:- 1993:+ 1990:k 1988:+ 1977:) 1968:1 1965:B 1959:u 1957:+ 1953:+ 1947:- 1945:, 1943:+ 1941:, 1927:= 1925:+ 1921:+ 1908:7 1905:7 1902:1 1899:0 1897:+ 1891:1 1888:4 1885:2 1883:+ 1864:. 1858:+ 1854:+ 1850:+ 1830:. 1806:. 1713:. 1702:. 1657:⩱ 1653:⩲ 1645:∓ 1641:± 1625:b 1621:d 1617:) 1615:a 1613:( 1611:f 1606:c 1601:d 1597:c 1593:m 1588:) 1586:n 1584:( 1582:f 1578:m 1572:b 1568:a 1564:n 1532:± 1520:) 1518:2 1515:s 1511:1 1508:s 1504:3 1501:s 1495:2 1492:s 1486:1 1483:s 1466:n 1462:n 1454:n 1434:+ 1429:1 1426:+ 1423:n 1420:2 1416:x 1409:! 1406:) 1403:1 1400:+ 1397:n 1394:2 1391:( 1387:1 1376:+ 1370:! 1367:7 1361:7 1357:x 1345:! 1342:5 1336:5 1332:x 1326:+ 1320:! 1317:3 1311:3 1307:x 1298:x 1295:= 1291:) 1288:x 1285:( 1243:) 1239:y 1236:x 1228:2 1224:) 1220:y 1217:+ 1214:x 1211:( 1207:( 1203:) 1200:y 1194:x 1191:( 1188:= 1179:3 1175:y 1166:3 1162:x 1153:) 1149:y 1146:x 1143:+ 1138:2 1134:) 1130:y 1124:x 1121:( 1117:( 1113:) 1110:y 1107:+ 1104:x 1101:( 1098:= 1089:3 1085:y 1081:+ 1076:3 1072:x 1040:) 1036:y 1033:x 1025:2 1021:) 1017:y 1011:x 1008:( 1004:( 1000:) 997:y 991:x 988:( 985:= 980:3 976:y 967:3 963:x 925:) 922:B 919:( 910:) 907:A 904:( 895:+ 892:) 889:B 886:( 877:) 874:A 871:( 862:= 855:) 852:B 846:A 843:( 830:) 827:B 824:( 815:) 812:A 809:( 797:) 794:B 791:( 782:) 779:A 776:( 767:= 760:) 757:B 754:+ 751:A 748:( 712:) 709:B 706:( 697:) 694:A 691:( 679:) 676:B 673:( 664:) 661:A 658:( 649:= 646:) 643:B 637:A 634:( 615:∓ 611:) 609:z 605:y 601:x 593:± 589:∓ 584:z 580:y 576:x 570:z 566:y 562:x 553:z 549:y 545:x 539:z 535:y 531:x 525:z 521:y 517:x 512:± 508:∓ 497:− 493:+ 476:) 473:B 470:( 461:) 458:A 455:( 443:) 440:B 437:( 428:) 425:A 422:( 413:= 410:) 407:B 401:A 398:( 372:c 343:, 337:a 334:2 327:c 324:a 321:4 313:2 309:b 300:b 291:= 288:x 270:x 263:x 256:x 249:x 241:− 237:+ 229:± 179:∓ 134:. 116:± 92:) 88:( 63:) 59:( 29:± 23:.

Index

Plus–minus (disambiguation)
Unicode

mathematics
addition
subtraction
statistics
experimental sciences
confidence interval
uncertainty
errors
standard deviation
standard error
chess
minus-plus sign
Albert Girard
William Oughtred
mathematical formulas
plus and minus signs
quadratic formula
quadratic equation
trigonometric identity
conjugate
perfect squares
Taylor series
tolerance
margin of error
standard deviations
normal distribution
propagation of error

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