常用英文数学式符号的读法英语学习必备.doc

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1、英语数学符号+ plus加号;正号- minus减号;负号plus or minus正负号is multiplied by乘号is divided by除号is equal to等于号is not equal to不等于号is equivalent to全等于号is equal to or approximately equal to等于或约等于号is approximately equal to约等于号is less than小于号isgreater than大于号is not less than不小于号is not more than不大于号is less than or equal to

2、小于或等于号is more than or equal to大于或等于号% per cent百分之per mill千分之infinity无限大号varies as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pi 圆周率triangle三角形perpendicular to垂直于union of并,合集intersection of 交,通集the integral of 的积分(sigma) summation of

3、总和degree度minute分second秒Celsius system摄氏度open brace, open curly左花括号close brace, close curly右花括号(open parenthesis, open paren左圆括号)close parenthesis, close paren右圆括号() brakets/ parentheses括号open bracket 左方括号close bracket 右方括号 square brackets方括号.period, dot句号,点|vertical bar, vertical virgule竖线&ersand

4、, 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, sometimes escape反斜线转义符,有时表示转义符或续行符tilde波浪符.full stop句号,comma逗号:colon冒号;semicolon分号?question mark问号!exclamation mark (英式英语) exclamation point (美式英语)apos

5、trophe撇号-hyphen连字号- dash 破折号.dots/ ellipsis省略号single quotation marks 单引号double quotation marks 双引号 parallel 双线号&ersand = andswung dash 代字号section; division 分节号arrow 箭号;参见号一些特殊数学符号的英语读法exclam!atnumbersign#dollar$percent%caretampersand&asterisk*parenleft(parenright)minus-underscore_equal=plus+brack

6、etleftbraceleftbracketrightbracerightsemicolon;colon:quotedoublequotebackquotetildebackslashbar|comma,lessslash/question?space hyphen 连字符 apostrophe 省略号;所有格符号 dash 破折号 single quotation marks 单引号“ ”double quotation marks 双引号( ) parentheses 圆括号 square brackets 方括号Angle bracket Brace French quotes 法文引号

7、;书名号. ellipsis 省略号 tandem colon 双点号 ditto 同上 parallel 双线号 virgule 斜线号 ampersand = and swung dash 代字号 section; division 分节号 arrow 箭号;参见号 plus 加号;正号 minus 减号;负号 plus or minus 正负号 is multiplied by 乘号 is divided by 除号 is equal to 等于号 is not equal to 不等于号 is equivalent to 全等于号 is equal to or approximatel

8、y equal to 等于或约等于号 is approximately equal to 约等于号 is less than 小于号 is more than 大于号 is not less than 不小于号 (来源:英语资料下载 ) is not more than 不大于号 is less than or equal to 小于或等于号 is more than or equal to 大于或等于号 per cent 百分之 per mill 千分之 infinity 无限大号 varies as 与成比例 (square) root 平方根 since; because 因为 henc

9、e 所以 equals, as (proportion) 等于,成比例 angle 角 semicircle 半圆 circle 圆 circumference 圆周 pi 圆周率 triangle 三角形 perpendicular to 垂直于 union of 并,合集 intersection of 交,通集 the integral of 的积分 (sigma) summation of 总和 degree 度 minute 分 second 秒 number 号 Celsius system 摄氏度 at 单价x是x prime(比如转置矩阵)x是x double-prime(来源

10、:英语资料下载 )+ plus加号;正号- minus减号;负号plus or minus正负号is multiplied by乘号is divided by除号is equal to等于号is not equal to不等于号is equivalent to全等于号is equal to or approximately equal to等于或约等于号is approximately equal to约等于号is less than小于号is more than大于号 is not less than不小于号 is not more than不大于号is less than or equal

11、 to小于或等于号is more than or equal to大于或等于号% per cent百分之per mill千分之infinity无限大号varies as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pi 圆周率triangle三角形perpendicular to垂直于union of并,合集intersection of 交,通集the integral of 的积分(sigma) summation

12、 of总和degree度minute分second秒Celsius system摄氏度open brace, open curly左花括号close brace, close curly右花括号(open parenthesis, open paren左圆括号)close parenthesis, close paren右圆括号() brakets/ parentheses括号open bracket 左方括号close bracket 右方括号 square brackets方括号.period, dot句号,点|vertical bar, vertical virgule竖线& amp;a

13、mpersand, 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, sometimes escape反斜线转义符,有时表示转义符或续行符tilde波浪符.full stop句号,comma逗号:colon冒号;semicolon分号?question mark问号!exclamation mark (英式英语) exclamation point (美

14、式英语)apostrophe撇号-hyphen连字号- dash 破折号.dots/ ellipsis省略号single quotation marks 单引号double quotation marks 双引号 parallel 双线号swung dash 代字号section; division 分节号arrow 箭号;参见号各种数学符号和表达式的英文读法一、一般符号对应的英文单词period 句号,comma 逗号:colon 冒号;semicolon 分号!exclamation 惊叹号?question mark 问号hyphen 连字符apostrophe 省略号;所有格符号das

15、h 破折号 single quotation marks 单引号“ ”double quotation marks 双引号( )parentheses 圆括号 square brackets 方括号 French quotes 法文引号;书名号.ellipsis 省略号tandem colon 双点号ditto 同上parallel 平行virgule 斜线号ampersand = andswung dash 代字号section; division 分节号arrow 箭号;参见号plus 加号;正号minus 减号;负号plus or minus 正负号is multiplied by or

16、 cross 叉乘is divided by 除号is equal to 等于号is not equal to 不等于号is equivalent to 全等于号is equal to or approximately equal to 等于或约等于号is approximately equal to 约等于号is less than 小于号is more than (is greater than在数学中更常用) 大于号is not less than 不小于号is not more than 不大于号is less than or equal to 小于或等于号is more than o

17、r equal to 大于或等于号per cent 百分之per mill 千分之infinity 无限大号varies as 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pi 圆周率triangle 三角形perpendicular to 垂直于;另外normal to,right to也都有垂直的意思。union of 并,合集intersection of 交,通集the integral of

18、 的积分(sigma) summation of 总和degree 度minute 分second 秒 pound 号 pi. dot (点乘就是centered dot)f f prime f撇A上面一个横杠:A barA上面一个星星*: A asteriskA上面一个波浪线:A tildeA的厄米共轭(注意不是加号,那个竖比横长):A dagger(dagger:短剑,匕首)偏微分符号(不好意思,打不出来) 有人把它读partial 或者d 但这样读都不正规,最正规读法为round因为这个符号是法国人发明的,一开始就叫round倒三角符号(不好意思,打不出来2) 读作nabla或者del读

19、nabla的居多,后者在某些英文书里会见到。nabla符号本身具有不同的功能,当它按不同的乘法规则作用于函数时会分别得到梯度:grandient 符号为grad散度:divergence 符号为div此时可直接读作grandient(divergence) of .二、一些函数关系的读法A与B的乘积 the _ product of A and B(_中填乘积的性质,例如外积就填outer,内积就填inner)A乘以B A times B or A is multiplied by BA/B A over B B分之A的最普通读法f(x) f of x 函数f(x)exp(n) e to po

20、wers of n e的n次幂一、一般符号对应的英文单词 period 句号, comma 逗号: colon 冒号; semicolon 分号! exclamation 惊叹号? question mark 问号 hyphen 连字符 apostrophe 省略号;所有格符号 dash 破折号single quotation marks 单引号“”double quotation marks 双引号( ) parentheses 圆括号 square brackets 方括号 French quotes 法文引号;书名号. ellipsis 省略号 tandem colon 双点号 ditt

21、o 同上 parallel 平行 virgule 斜线号 ampersand = and swung dash 代字号 section; division 分节号 arrow 箭号;参见号 plus 加号;正号 minus 减号;负号 plus or minus 正负号 is multiplied by or cross 叉乘 is divided by 除号 is equal to 等于号 is not equal to 不等于号 is equivalent to 全等于号 is equal to or approximately equal to 等于或约等于号 is approximat

22、ely equal to 约等于号 is less than 小于号 is more than (is greater than在数学中更常用) 大于号 is not less than 不小于号 is not more than 不大于号 is less than or equal to 小于或等于号 is more than or equal to 大于或等于号 per cent 百分之 per mill 千分之 infinity 无限大号 varies as 与成比例 (square) root 平方根 since; because 因为 hence 所以 equals, as (pro

23、portion) 等于,成比例 angle 角 semicircle 半圆 circle 圆 circumference 圆周 pi 圆周率 triangle 三角形 perpendicular to 垂直于;另外normal to,right to也都有垂直的意思。 union of 并,合集 intersection of 交,通集 the integral of 的积分 (sigma) summation of 总和 degree 度 minute 分 second 秒 pound 号 pi. dot (点乘就是centered dot)f f prime f撇A上面一个横杠:A bar

24、A上面一个星星*: A asteriskA上面一个波浪线:A tildeA的厄米共轭(注意不是加号,那个竖比横长):A dagger(dagger:短剑,匕首)偏微分符号(不好意思,打不出来) 有人把它读partial 或者d但这样读都不正规,最正规读法为round因为这个符号是法国人发明的,一开始就叫round倒三角符号(不好意思,打不出来2) 读作nabla或者del读nabla的居多,后者在某些英文书里会见到。nabla符号本身具有不同的功能,当它按不同的乘法规则作用于函数时会分别得到梯度:grandient 符号为grad散度:divergence 符号为div此时可直接读作grand

25、ient(divergence) of .二、一些函数关系的读法A与B的乘积 the _ product of A and B(_中填乘积的性质,例如外积就填outer,内积就填inner)A乘以B A times B or A is multiplied by BA/B A over B B分之A的最普通读法f(x) f of x 函数f(x)exp(n) e to powers of n e的n次幂三、 Pronunciation of Numerals 数词的读法 1.Cardinals and Ordinals 基数和序数(1)100以内的数词基数 序数Roman ArabicNume

26、rals Numerals罗马数字 阿拉伯数字 读法 数码 读法I 1 one 1st the firstII 2 two 2nd the secondIII 3 three 3rd the thirdIV 4 four 4th the fourthV 5 five 5th the fifthVI 6 six 6th the sixthVII 7 seven 7th the seventhVIII 8 eight 8th the eighthIX 9 nine 9th the ninthX 10 ten 10th the tenthXI 11 eleven 11th the eleventhX

27、II 12 twelve 12th the twelfthXIII 13 thirteen 13th the thirteenthXIV 14 fourteen 14th the fourteenthXV 15 fifteen 15th the fifteenthXVI 16 sixteen 16th the sixteenthXVII 17 seventeen 17th the seventeenthXVIII 18 eighteen 18th the eighteenthXIX 19 nineteen 19th the nineteenthXX 20 twenty 20th the twe

28、ntiethXXI 21 twenty-one 21st the twenty-firstXXV 25 twenty-five 25th the twenty-fifthXXX 30 thirty 30th the thirtiethXL 40 forty 40th the fortiethL 50 fifty 50th the fiftiethLX 60 sixty 60th the sixtiethLXX 70 seventy 70th the seventiethLXXX 80 eighty 80th the eightiethXC 90 ninety 90th the ninetiet

29、hIC 99 ninety-nine 99th the ninety-ninthC 100 one hundred 100th the hundredthCII 102 a hundred 102nd the (one) hundredand two and second246 two hundred and forty-six751 seven hundred and fifty-one(2)1000以上的数词1,000 = one thousand 一千10,000 = ten thousand 一万100,000 = one hundred thousand 十万1,000,000 =

30、one million 一百万10,000,000 = ten million 一千万100,000,000=one hundred million 一亿(3)十亿以上的大数,英美有不同的读法:英国 美国十亿 one thousand million = one billion百亿 ten thousand million = ten billion千亿 one hundred thousand million = one hundred billion万亿 one billion = one trillion2.Fractions 分数通常将分子读为基数,将分母读为序数。1/2 = a (o

31、r one) half1/3 = a (or one) third1/4 = a quarter or one fouth1/5 = a (or one) fifth2/3 = two thirds9/10 = nine tenths53/4 = five and three quarters15/64= fifteen over (or by) sixty-four15% = fifteen per cent4 = four per mill3.Decimals 小数0.4 = zero (or nought) point four.01 = point (or decimal) nough

32、t one12.34 = twelve point three four567.809 = five hundred and sixty-seven point eight nought nine30.45 = thirty point four five, five recurring0.3% = decimal three percent4.Mathematic Forms 数学式(1) Addition 加法1+2=3 One and two are three.2+3=5 Two plus three equals five.4+0=4 Four and nought is equal

33、 to four.45+70+152=267 45,70 and 152 added are (or make) 267the sum (or total) is 267.演算时的读法: Three and seven are ten; I write(or I write down,or I put down)a noughtand carry one. Four and one that I carry are five, and eight make thirteen,and threesixteen; I write down six and carry one. One and on

34、e (that I carry) are two; I put downtwo.- The sum (or total, or the result of the addition) is two hundred and sixty. 37,80and 143 added together, and(or make) 260.(2)Subtraction 减法9-4=5 Nine minus four equals (or is equal to) five.15-7=8 Seven from fifteen leaves eight.23,654-8,175=15,479 8,175 (ta

35、ke or subtracted) from 23,654 leaves 15,479. The difference(or The remainder) is 15,479.Nine from five wont go.演算时的读法:Nought from nought (leaves) nought. One from one leaves nought (or nothing).Two from three (leaves) one. I cant take (or subtract) five from four; I must borrow ten;five from fourtee

36、n leaves nine.- The difference (or The remainder) is nine thousand onehundred. 5210 (take or substracted) from 14,310 leaves 9,100.(3)Multiplication 乘法10=0 One multiplied by nought equals nought.11=1 Once one is one.21=2 Twice one is two.35=15 Three times five is fifteen60=0 Multiply six by nothing,

37、 and the result is nothing.演算时的读法: Five times nine (or Nine multiplied by five) are forty-five; I put down fiveand carry four. Five times seven are thirty-five and four (that I carry) are thirty-nine; I writedown nine and carry three. Five times six make thirty and three (that I carry) thirty-three;

38、 I putdown thirty-three.Eight times nine (or Eight nine) are seven two; I write two and carry seven. Eight sevens makefifty-six and seven are sixty-three. I put down three and carry six. Eight sixes make forty-eightand six fifty-four; I write down fifty-four.I now add the partial results (or product

39、s) Five. Two and nine are eleven. Three and three aresix and one are seven. Four and three make seven. Five.(4)Division 除法93=3 Nine divided by three maks (or is equal to) three.205=4 Five into twenty goes four times.456723=198余13 23 into 4567 goes 198 times, and 13 remainder.The quctient is 198, and 13 remainder.演算时的读法: Fifteen into thirteen wont go ; fifteen into one hundred and thirty-eight goes ninetimes; nine times fifteen are one hundred and threty-five; one hundred and thirty-five from one hundredand thirty-eight leaves three; I bring down seven; fifteen into thirty-seven goes twic

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