数学符号及其读法大全(很实用)

一些数学符号的读音电工电子2009-09-0907:53:10阅读1604评论3字号：大中小1Ααalphaa:lf阿尔法角度；系数2Ββbetabet贝塔磁通系数；角度；系数3Γγgammaga:m伽马电导系数（小写）4Δδdeltadelt德尔塔变动；密度；屈光度5Εεepsilonep`silon伊普西龙对数之基数6Ζζzetazat截塔系数；方位角；阻抗；相对粘度；原子序数7Ηηetaeit艾塔磁滞系数；效率（小写）8Θθthetθit西塔温度；相位角9Ιιiotaiot约塔微小，一点儿10Κκkappakap卡帕介质常数11∧λlambdalambd兰布达波长（小写）；体积12Μμmumju缪磁导系数；微（千分之一）；放大因数（小写）13Ννnunju纽磁阻系数14Ξξxiksi克西15Οοomicronomik`ron奥密克戎16∏πpipai派圆周率=圆周÷直径=3.141617Ρρrhorou肉电阻系数（小写）18∑σsigma`sigma西格马总和（大写）， 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 面密度；跨导（小写）19Ττtautau套时间常数20Υυupsilonjup`silon宇普西龙位移21Φφphifai佛爱磁通；角22Χχchiphai西23Ψψpsipsai普西角速；介质电通量（静电力线）；角24Ωωomegao`miga欧米伽欧姆（大写）；角速（小写）；角希腊字母读法Αα：阿尔法AlphaΒβ：贝塔BetaΓγ：伽玛GammaΔδ：德尔塔DelteΕε：艾普西龙Epsilonζ:捷塔ZetaΖη：依塔EtaΘθ：西塔ThetaΙι：艾欧塔IotaΚκ：喀帕Kappa∧λ：拉姆达LambdaΜμ：缪MuΝν：拗NuΞξ：克西XiΟο：欧麦克轮Omicron∏π：派PiΡρ：柔Rho∑σ：西格玛SigmaΤτ：套TauΥυ：宇普西龙UpsilonΦφ：faiPhiΧχ：器ChiΨψ：普赛PsiΩω：欧米伽Omega希腊字母怎么打打开Office文档之后，在你需要输入希腊字母的时候，先将输入法切换为英文状态，然后同时按下三个键Ctrl+Shift+Q，工具栏上的“字体”就会发生变化此刻，你再对照下表输入a,b,c……即可得到您想要的希腊字母。注意，大小写状态时所代表的希腊字母也会有大小写区分的哦！—dash破折号‘’singlequotationmarks单引号“”doublequotationmarks双引号()parentheses圆括号[]squarebrackets方括号《》Frenchquotes法文引号； 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf 名号...ellipsis省略号¨tandemcolon双点号"ditto同上‖parallel双线号／virgule斜线号＆ampersand=and～swungdash代字号§section;division分节号→arrow箭号；参见号＋plus加号；正号－minus减号；负号±plusorminus正负号×ismultipliedby乘号÷isdividedby除号＝isequalto等于号≠isnotequalto不等于号≡isequivalentto全等于号≌isequaltoorapproximatelyequalto等于或约等于号≈isapproximatelyequalto约等于号＜islessthan小于号＞ismorethan大于号≮isnotlessthan不小于号≯isnotmorethan不大于号≤islessthanorequalto小于或等于号≥ismorethanorequalto大于或等于号％percent百分之…‰permill千分之…∞infinity无限大号∝variesas与…成比例√(square)root平方根∵since;because因为∴hence所以∷equals,as(proportion)等于，成比例∠angle角⌒semicircle半圆⊙circle圆○circumference圆周πpi圆周率△triangle三角形⊥perpendicularto垂直于∪unionof并，合集∩intersectionof交，通集∫theintegralof…的积分∑(sigma)summationof总和°degree度′minute分″second秒＃number…号℃Celsiussystem摄氏度＠at单价α(阿而法)β(贝塔)γ(伽马）δ（德尔塔）ε（艾普西龙）ζ（截塔）η（艾塔）θ（西塔）ι约塔）κ（卡帕）λ（兰姆达）μ（米尤）ν（纽）ξ（可系）ο（奥密克戎）π（派）ρ（若）σ（西格马）τ（套）υ（英文或拉丁字母）φ（斐）χ（喜）ψ（普西））ω（欧米伽）各种符号的英文读法'exclam'＝'!''at'＝'@''numbersign'＝'#''dollar'＝'$''percent'＝'%''caret'＝'^''ampersand'＝'&''asterisk'＝'*''parenleft'＝'(''parenright'＝')''minus'＝'-''underscore'＝'_''equal'＝'=''plus'＝'+''bracketleft'＝'[''braceleft'＝'{''bracketright'＝']''braceright'＝'}''semicolon'＝';''colon'＝':''quote'＝''''doublequote'＝'"''backquote'＝''''tilde'＝'~''backslash'＝'\''bar'＝'|''comma'＝',''less'＝'<''period'＝'.''greater'＝'>''slash'＝'/''question'＝'?''space'＝''~~~~~~~~~~~~~~~~~~~~~~￣hyphen连字符'apostrophe省略号；所有格符号—dash破折号‘’singlequotationmarks单引号“”doublequotationmarks双引号()parentheses圆括号[]squarebrackets方括号Anglebracket{}Brace《》Frenchquotes法文引号；书名号...ellipsis省略号¨tandemcolon双点号"ditto同上‖parallel双线号／virgule斜线号＆ampersand=and～swungdash代字号§section;division分节号→arrow箭号；参见号＋plus加号；正号－minus减号；负号±plusorminus正负号×ismultipliedby乘号÷isdividedby除号＝isequalto等于号≠isnotequalto不等于号≡isequivalentto全等于号≌isequaltoorapproximatelyequalto等于或约等于号≈isapproximatelyequalto约等于号＜islessthan小于号＞ismorethan大于号≮isnotlessthan不小于号≯isnotmorethan不大于号≤islessthanorequalto小于或等于号≥ismorethanorequalto大于或等于号％percent百分之…‰permill千分之…∞infinity无限大号∝variesas与…成比例√(square)root平方根∵since;because因为∴hence所以∷equals,as(proportion)等于，成比例∠angle角⌒semicircle半圆⊙circle圆○circumference圆周πpi圆周率△triangle三角形⊥perpendicularto垂直于∪unionof并，合集∩intersectionof交，通集∫theintegralof…的积分∑(sigma)summationof总和°degree度′minute分″second秒＃number…号℃Celsiussystem摄氏度＠at单价x'是xprime(比如转置矩阵)x"是xdouble-prime常用英文数学式/符号的读法PronunciationofNumerals数词的读法----------------------------------------------------------------------1.CardinalsandOrdinals基数和序数(1)100以内的数词基数序数RomanArabicNumeralsNumerals罗马数字阿拉伯数字读法数码读法I1one1stthefirstII2two2ndthesecondIII3three3rdthethirdIV4four4ththefourthV5five5ththefifthVI6six6ththesixthVII7seven7ththeseventhVIII8eight8ththeeighthIX9nine9ththeninthX10ten10ththetenthXI11eleven11ththeeleventhXII12twelve12ththetwelfthXIII13thirteen13ththethirteenthXIV14fourteen14ththefourteenthXV15fifteen15ththefifteenthXVI16sixteen16ththesixteenthXVII17seventeen17ththeseventeenthXVIII18eighteen18ththeeighteenthXIX19nineteen19ththenineteenthXX20twenty20ththetwentiethXXI21twenty-one21stthetwenty-firstXXV25twenty-five25ththetwenty-fifthXXX30thirty30ththethirtiethXL40forty40ththefortiethL50fifty50ththefiftiethLX60sixty60ththesixtiethLXX70seventy70ththeseventiethLXXX80eighty80ththeeightiethXC90ninety90ththeninetiethIC99ninety-nine99ththeninety-ninthC100onehundred100ththehundredthCII102ahundred102ndthe(one)hundredandtwoandsecond246twohundredandforty-six751sevenhundredandfifty-one(2)1000以上的数词1,000=onethousand一千10,000=tenthousand一万100,000=onehundredthousand十万1,000,000=onemillion一百万10,000,000=tenmillion一千万100,000,000=onehundredmillion一亿(3)十亿以上的大数，英美有不同的读法：英国美国十亿onethousandmillion=onebillion百亿tenthousandmillion=tenbillion千亿onehundredthousandmillion=onehundredbillion万亿onebillion=onetrillion2.Fractions分数通常将分子读为基数，将分母读为序数。1/2=a(orone)half1/3=a(orone)third1/4=aquarteroronefouth1/5=a(orone)fifth2/3=twothirds9/10=ninetenths53/4=fiveandthreequarters15/64=fifteenover(orby)sixty-four15%=fifteenpercent4‰=fourpermill3.Decimals小数0.4=zero(ornought)pointfour.01=point(ordecimal)noughtone12.34=twelvepointthreefour567.809=fivehundredandsixty-sevenpointeightnoughtnine30.45=thirtypointfourfive,fiverecurring0.3%=decimalthreepercent4.MathematicForms数学式(1)Addition加法1+2=3Oneandtwoarethree.2+3=5Twoplusthreeequalsfive.4+0=4Fourandnoughtisequaltofour.45+70+152=26745,70and152addedare(ormake)267thesum(ortotal)is267.演算时的读法：Threeandsevenareten;Iwrite(orIwritedown,orIputdown)anoughtandcarryone.FourandonethatIcarryarefive,andeightmakethirteen,andthreesixteen;Iwritedownsixandcarryone.Oneandone(thatIcarry)aretwo;Iputdowntwo.-Thesum(ortotal,ortheresultoftheaddition)istwohundredandsixty.37,80and143addedtogether,and(ormake)260.(2)Subtraction减法9-4=5Nineminusfourequals(orisequalto)five.15-7=8Sevenfromfifteenleaveseight.23,654-8,175=15,4798,175(takeorsubtracted)from23,654leaves15,479.Thedifference(orTheremainder)is15,479.Ninefromfivewon`tgo.演算时的读法：Noughtfromnought(leaves)nought.Onefromoneleavesnought(ornothing).Twofromthree(leaves)one.Ican`ttake(orsubtract)fivefromfour;Imustborrowten;fivefromfourteenleavesnine.-Thedifference(orTheremainder)isninethousandonehundred.5210(takeorsubstracted)from14,310leaves9,100.(3)Multiplication乘法1×0=0Onemultipliedbynoughtequalsnought.1×1=1Onceoneisone.2×1=2Twiceoneistwo.3×5=15Threetimesfiveisfifteen6×0=0Multiplysixbynothing,andtheresultisnothing.演算时的读法:Fivetimesnine(orNinemultipliedbyfive)areforty-five;Iputdownfiveandcarryfour.Fivetimessevenarethirty-fiveandfour(thatIcarry)arethirty-nine;Iwritedownnineandcarrythree.Fivetimessixmakethirtyandthree(thatIcarry)thirty-three;Iputdownthirty-three.Eighttimesnine(orEightnine)areseventwo;Iwritetwoandcarryseven.Eightsevensmakefifty-sixandsevenaresixty-three.Iputdownthreeandcarrysix.Eightsixesmakeforty-eightandsixfifty-four;Iwritedownfifty-four.Inowaddthepartialresults(orproducts)Five.Twoandnineareeleven.Threeandthreearesixandoneareseven.Fourandthreemakeseven.Five.(4)Division除法9÷3=3Ninedividedbythreemaks(orisequalto)three.20÷5=4Fiveintotwentygoesfourtimes.4567÷23=198余1323into4567goes198times,and13remainder.Thequctientis198,and13remainder.演算时的读法:Fifteenintothirteenwon`tgo;fifteenintoonehundredandthirty-eightgoesninetimes;ninetimesfifteenareonehundredandthrety-five;onehundredandthirty-fivefromonehundredandthirty-eightleavesthree;Ibringdownseven;fifteenintothirty-sevengoestwice;twicefifteenarethirty;thirtyfromthirty-sevenleavesseven.The(exact)quotientisninety-two,andsevenremainder;15into1387goes92times,and7remainder.5.Time时间(1)Hours钟点2h.5'8"=twohoursfiveminuteseightseconds2小时5分8秒6.18=sixeighteen6时18分8.30a.m.=eightthirtya.m.['ei'em]上午8时30分the6.05p.m.train=thesix(nought)fivep.m.['pi:'em]train下午6时零5分列车又二十四小时混合制的写法和读法如下：0900=0ninehunderd(上午)9时0910=0nineten(上午)9时10分1300=thirteenhundred13时(下午1时)1525=fifteentwenty-five15时25分(下午3时25分)2000=twentyhundred20时(下午8时)at5o'c=atfiveo'clock五点钟(2)Date日期Oct.1=Octoberfirst10月1日Oct.1st=Octoberthefirst10月1日IstOct.1949=tehfirstofOctober,nineteenforty-nine1949年10月1日3/5=[英]May(the)third5月3日；[美]Marchfifth3月5日[附注]联系日期前置词用on.(3)Year年份684B.C.=Sixeighty-fourB.C.['bi:'si:]公元前684年1960=nineteensixty;nineteenhundredandsixty19-nineteensomething1950'snineteenfifties二十世纪五十年代[附注]联系年份的前置词用in.6.Numbers号码(1)TelephonesNumbers电话号码1023=oneOtwothree;tentwenty-three1227=onedoubletwo(ortwotwo)seven0386=Othreeeightsix0096=doubleO(orOO)ninesix7000=sevenOdoubleO=seventhousandNo.26=Number26第26号Room201=RoomtwoOone第201房间10ChanganStreet=TenChanganStreet长安街10号(2)Writings书籍作品Vol.I=Volumeone(orthefirstvolume)卷一Chap.II=Chaptertwo(orthesecondchapter)第2章Page3=pageThree(orthethirdpage)第3页Seepp.5-10=SeePagesfivetoten见第5-10页ActV=Actfive(orthefifthact)第5幕HamletIII1:56=HamletActThree,SeceneOne.Linefifty-six《哈姆雷特》第3幕第一场第56行Matt.7:12=Matthew,ChapterSeven,VerseTwelve《马可福音》第七章第12节BeethovenOp.49=BeethovenOpusforty-nine贝多芬作品第49号4to=quarto四本开8vo=octavo八本开(3)Other其他WorldWarI=WorldWarOne第一次世界大战WorldWarII=WorldWarTwo第二次世界大战CharlesI=CharlestheFirst查理一世HenryV=HenrytheFifth亨利五世Mr.-=Mr.Dash;Mr.So-and-so某某先生Mr.B-=Mr.B-Esq.,of-=thetownofBlankEsquireofBlankUniversity某大学某某先生thetownof=thetownofBlank某某城Theresultofthegamewas3-0比赛结果是三比零。7.Money货币(1)Britishcurrency英币6d.=sixpence六便士1/2d.=ahalfpenny半便士11/2d.=apeneyhalfpennyorthreehalfpenyorthreehalfpence一便士半1/4d.=afarthing一个铜元33/4d.=threepencethreefarghings三便士三铜元1s.6d.(or1/6)=one(shilling)andsix(pence)一先令六便士￡1.18=(or￡1.18s.)=onepoundeighteen(shillings)一镑十八先令￡1.3s.6d.=onepound,threeshillings(and)sixpence4/51/2(or4s.51/2d.)=four(shillings)andfivepencehalfpenny(2)U.S.currency1.20dollar(and)twenty(cents)美金一元二角4.25=fourdollarstwenty-fivecents美金四元二角五分(3)Sovietcurrency前苏联币6Rb.15=sixroublesfifteenkopecks六卢布十五戈比(4)Germancurrency德币1m.60=onemarksixtypfennig-马克六十芬尼(5)Frenchcurrency法国币1fr.30=onefranc.thirty(centimes)-法郎三十生丁0fr.15=fifteencentimes十五生丁(6)ChinesePeople'sCurrency人民币1.50=oneyuanandahalf一元五角JMP10.35=JMPtenyuanthirty-five(fen)人民币十元三角五分附注：yuan单复数没有变化：也可作为日本本位币“圆”的符号。8.WeightandMeasures度量衡(1)length,area,andvolume长度、面积和容积3in=threeinches三英寸15ft.5in=fifteenfootfive(inches)十五英尺五英寸[附注]尤其在inches省略时,ft.读作foot;如果inches也念出来，ft可以读作fett.18'65/1"=eighteenfootsixandafifth(inches)10×8feet=tenbyeightfeet十英尺长，八英尺宽5"×4×31/2=fiveinchesbyfourbythreeandahalf长五英寸，宽四英寸，高三英寸半[附注]以上二例中，乘号×表示面积或容积。(2)Weight重量12dr.23gr.=Twelvedramstwenty-threegrains十二打兰二十三喱10oz.4dr.=Tenouncesfourdrams十盎司打兰(3)Capacity容量3gi.=threegills三及耳1qt.1pt=onequartonepint一夸脱一品脱[附注]qt.,pt.的复数是qts.,pts.,也可以不加s.20gal.5qt.=Twentygallonsfivequarts二十加仑五夸脱5bu.3pk.=Fivebushelsthreepecks五蒲式耳三配克+plus加号；正号-minus减号；负号±plusorminus正负号×ismultipliedby乘号÷isdividedby除号＝isequalto等于号≠isnotequalto不等于号≡isequivalentto全等于号≌isequaltoorapproximatelyequalto等于或约等于号≈isapproximatelyequalto约等于号＜islessthan小于号＞ismorethan大于号≮isnotlessthan不小于号≯isnotmorethan不大于号≤islessthanorequalto小于或等于号≥ismorethanorequalto大于或等于号%percent百分之…‰permill千分之…∞infinity无限大号∝variesas与…成比例√(square)root平方根∵since;because因为∴hence所以∷equals,as(proportion)等于，成比例∠angle角⌒semicircle半圆⊙circle圆○circumference圆周πpi圆周率△triangle三角形⊥perpendicularto垂直于∪unionof并，合集∩intersectionof交，通集∫theintegralof…的积分∑(sigma)summationof总和°degree度′minute分″second秒℃Celsiussystem摄氏度{openbrace,opencurly左花括号}closebrace,closecurly右花括号(openparenthesis,openparen左圆括号)closeparenthesis,closeparen右圆括号()brakets/parentheses括号[openbracket左方括号]closebracket右方括号[]squarebrackets方括号.period,dot句号，点|verticalbar,verticalvirgule竖线&amp;ampersand,and,reference,ref和，引用*asterisk,multiply,star,pointer星号，乘号，星，指针/slash,divide,oblique斜线，斜杠，除号//slash-slash,comment双斜线，注释符#pound井号\backslash,sometimesescape反斜线转义符，有时表示转义符或续行符~tilde波浪符.fullstop句号,comma逗号:colon冒号;semicolon分号?questionmark问号!exclamationmark(英式英语)exclamationpoint(美式英语)'apostrophe撇号-hyphen连字号--dash破折号...dots/ellipsis省略号"singlequotationmarks单引号""doublequotationmarks双引号‖parallel双线号～swungdash代字号§section;division分节号→arrow箭号；参见号