数学用语的英文读法.doc

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1、数学式和数学用语的英文读法一、Number数字106：onemillion109：onebillion(oronethousandmillion)1012：onetrillion(oronemillionmillion)1015：onequadrillion(oronethousandmillionmillion)1018：onequintillion(oronemillionmillionmillion)二、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：aqua

2、rteroronefourth2/3：twothirds,twooverthree,ortwobythree9/10：ninetenths,nineoverten,orninebyten4‰：fourpermill(ormil)三、Decimals小数0.4：zero(ornaught)pointfour.01：point(ordecimal)naught(oroh)one12.34：twelvepointthreefour30.45：thirtypointfourfive,0.3333333…..：pointthreerepeating(orre

3、curring)四、MathematicForms数学式(4-1)Addition加法1+2=3：Oneandtwoarethree.2+3=5：Twoplusthreeequalsfive.4+0=4：Fourandnaughtisequaltofour.45+70+152=267：45,70and152addedare(ormake)267thesum(ortotal)is267.(4-2)Subtraction减法(4-3)Multiplication乘法(4-4)Division除法五、Power幂次方bn当中，b被称为底数(base)，n

4、被称为指数(powerorexponent)bn：thenthpowerofb或btothenthpower.a×107：atimestheseventhpoweroften.b的平方：bsquareorbsquaredb的立方：bcubeorbcubedb的4次方：btothefourthb的-1次方：btotheminusone八、其它log(x)：thelogarithmofxlogb(x)：thelogarithmofxtothebaseb5:3：fivetothree45度角：forty-fivedegreeangle二元一次方程式：li

5、near(orsimple)equationwithtwounknowns一元二次方程式：quadraticequationwithoneunknown九、符号的英文读法(9-1)PunctuationMarks标点符号中文英文中文英文§分节号section;division-破折号dash。句号period／斜线virgule;slash，逗号comma＼反斜线backslash：冒号colon～波浪号tilde(orswungdash)；分号semicolon...省略号ellipsis！惊叹号exclamation()圆括号parenthes

6、es＠at''单引号singlequotationmarks'所有格号apostrophe“”双引号doublequotationmarks？问号questionmark《》法文引号或书名号Frenchquotes.点dot[]方括号(square)brackets*星号asterisk(orstar){}大括号braces→箭号arrow‖双线号parallel(9-2)MathematicalSymbols(I)数学符号(一)中文英文中文英文＝等号isequalto≯不大于isnotmorethan≠不等号isnotequalto％百分之per

7、cent(orpercent)≈约等于isapproximatelyequalto‰千分之permill(ormil)＜小于islessthan≡全等号isequivalentto＞大于ismorethan≌约等于isapproximatelyequalto≤小于等于islessthanorequalto;isnomorethan∝与…成比例variesas≥大于等于ismorethanorequalto;isnolessthan∞无限大infinity≮不小于isnotlessthan＆以及and(orampersand)(9-3)Mathema

8、ticalSymbols(II)数学符号(二)中文英文中文英文＋加号正号plus√平方根(square)root－减号负号