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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