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常用英文数学式符号的读法

英语数学符号
默认分类 2010-05-04 18:44:55 阅读 30 评论 0 字号:大中小 订阅 中

+ -

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 greater 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 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 π 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

℃ 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 & 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, 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)

' 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 & ampersand = and ~ swung 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'='!' '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'=' ' (来源:英语分类信息 http://fl.englishcn.com) ~~~~~~~~~~~~~~~~~~~~~~ (来源:EnglishCN 英语博客基地)

 ̄ 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;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 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 (来源:英语资料下载 http://download.englishcn.com) ≯ 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 (proportion) 等于,成比例 ∠ angle 角 ⌒ semicircle 半圆 ⊙ circle 圆 ○ circumference 圆周 π 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:英语资料下载 http://download.englishcn.com) + 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 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 π 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 ℃ 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; 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, 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) ' 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 —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 "ditto 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 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 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 πpi 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 A 上面一个星星*: A asterisk A 上面一个波浪线~:A tilde A 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 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 B

A/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

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 " ditto 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 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 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 π 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 A 上面一个星星*: A asterisk A 上面一个波浪线~:A tilde A 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 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 B

A/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 Arabic Numerals Numerals 罗马数字 阿拉伯数字 读法 数码 读法 I 1 one 1st the first II 2 two 2nd the second III 3 three 3rd the third

IV 4 four 4th the fourth V 5 five 5th the fifth VI 6 six 6th the sixth VII 7 seven 7th the seventh VIII 8 eight 8th the eighth IX 9 nine 9th the ninth X 10 ten 10th the tenth XI 11 eleven 11th the eleventh XII 12 twelve 12th the twelfth XIII 13 thirteen 13th the thirteenth XIV 14 fourteen 14th the fourteenth XV 15 fifteen 15th the fifteenth XVI 16 sixteen 16th the sixteenth XVII 17 seventeen 17th the seventeenth XVIII 18 eighteen 18th the eighteenth XIX 19 nineteen 19th the nineteenth XX 20 twenty 20th the twentieth XXI 21 twenty-one 21st the twenty-first XXV 25 twenty-five 25th the twenty-fifth XXX 30 thirty 30th the thirtieth XL 40 forty 40th the fortieth L 50 fifty 50th the fiftieth

LX 60 sixty 60th the sixtieth LXX 70 seventy 70th the seventieth LXXX 80 eighty 80th the eightieth XC 90 ninety 90th the ninetieth IC 99 ninety-nine 99th the ninety-ninth C 100 one hundred 100th the hundredth CII 102 a hundred 102nd the (one) hundred and two and second 246 two hundred and forty-six 751 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 = 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 trillion

2.Fractions 分数

通常将分子读为基数,将分母读为序数。 1/2 = a (or one) half 1/3 = a (or one) third 1/4 = a quarter or one fouth 1/5 = a (or one) fifth 2/3 = two thirds 9/10 = nine tenths 53/4 = five and three quarters 15/64= fifteen over (or by) sixty-four 15% = fifteen per cent 4‰ = four per mill

3.Decimals 小数

0.4 = zero (or nought) point four .01 = point (or decimal) nought one

12.34 = twelve point three four 567.809 = five hundred and sixty-seven point eight nought nine 30.45 = thirty point four five, five recurring 0.3% = decimal three percent

4.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 to four. 45+70+152=267 45,70 and 152 added are (or make) 267 the 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 nought and carry one. Four and one that I carry are five, and eight make thirteen,and three sixteen; I write down six and carry one. One and one (that I carry) are two; I put down two.- The sum (or total, or the result of the addition) is two hundred and sixty. 37,80 and 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 (take or subtracted) from 23,654 leaves 15,479. The difference (or The remainder) is 15,479. Nine from five won`t 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 can`t take (or subtract) five from four; I must borrow ten; five from fourteen leaves nine.- The difference (or The remainder) is nine thousand one hundred. 5210 (take or substracted) from 14,310 leaves 9,100.

(3)Multiplication 乘法 1×0=0 One multiplied by nought equals nought. 1×1=1 Once one is one. 2×1=2 Twice one is two. 3×5=15 Three times five is fifteen 6×0=0 Multiply six by nothing, 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 five and carry four. Five times seven are thirty-five and four (that I carry) are thirty-nine; I write down nine and carry three. Five times six make thirty and three (that I carry)

thirty-three; I put down thirty-three. Eight times nine (or Eight nine) are seven two; I write two and carry seven. Eight sevens make fifty-six and seven are sixty-three. I put down three and carry six. Eight sixes make forty-eight and six fifty-four; I write down fifty-four. I now add the partial results (or products) Five. Two and nine are eleven. Three and three are six and one are seven. Four and three make seven. Five.

(4)Division 除法 9÷3=3 Nine divided by three maks (or is equal to) three. 20÷5=4 Five into twenty goes four times. 4567÷23=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 won`t go ; fifteen into one hundred and thirty-eight goes nine times; nine times fifteen are one hundred and threty-five; one hundred and thirty-five from one hundred and thirty-eight leaves three; I bring down seven; fifteen into thirty-seven goes twice; twice fifteen are thirty; thirty from thirty-seven leaves seven. The (exact) quotient is ninety-two, and seven remainder; 15 into 1387 goes 92 times, and 7 remainder.

5.Time 时间

(1)Hours 钟点 2h.5’8" = two hours five minutes eight seconds 2 小时 5 分 8 秒 6.18 = six eighteen 6 时 18 分 8.30 a.m.= eight thirty a.m.[’ei ’em] 上午 8 时 30 分 the 6.05 p.m.train = the six (nought) five p.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 = 0 nine hunderd (上午)9 时 0910 = 0 nine ten (上午)9 时 10 分 1300 = thirteen hundred 13 时(下午 1 时) 1525 = fifteen twenty-five 15 时 25 分(下午 3 时 25 分) 2000 = twenty hundred 20 时(下午 8 时) at 5 o’c =at five o’clock 五点钟

(2)Date 日期 Oct.1 =October first 10 月 1 日 Oct.1st = October the first 10 月 1 日 Ist Oct. 1949 = teh first of October, nineteen forty-nine 1949 年 10 月 1 日 3/5 = [英]May (the) third 5 月 3 日;[美]March fifth 3 月 5 日 [附注]联系日期前置词用 on.

(3)Year 年份 684 B.C. =Six eighty-four B.C. [’bi:’si:] 公元前 684 年 1960 = nineteen sixty; nineteen hundred and sixty 19- nineteen something 1950’s nineteen fifties 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)Telephones Numbers 电话号码 1023 = one O two three; ten twenty-three 1227 = one double two (or two two) seven 0386 = O three eight six 0096 = double O(or O O )nine six 7000 = seven O double O = seven thousand No.26= Number 26 第 26 号 Room 201 = Room two O one 第 201 房间 10 Changan Street = Ten Changan Street 长安街 10 号

(2)Writings 书籍作品

Vol.I = Volume one (or the first volume) 卷一 Chap.II= Chapter two (or the second chapter) 第 2 章 Page 3 = page Three (or the third page) 第 3 页 See pp.5-10 = See Pages five to ten 见第 5-10 页 Act V = Act five (or the fifth act) 第 5 幕 Hamlet III 1:56 = Hamlet Act Three, Secene One.Line fifty-six 《哈姆雷特》 第 3 幕第一场第 56 行 Matt.7:12 = Matthew, Chapter Seven, Verse Twelve 《马可福音》第七章第 12 节 Beethoven Op.49 = Beethoven Opus forty-nine 贝多芬作品第 49 号 4to = quarto 四本开 8vo = octavo 八本开

(3)Other 其他 World War I = World War One 第一次世界大战 World War II = World War Two 第二次世界大战 Charles I= Charles the First 查理一世 Henry V = Henry the Fifth 亨利五世 Mr.- = Mr. Dash; Mr. So-and-so 某某先生 Mr.B - = Mr. B -Esq.,of -= the town of Blank Esquire of Blank University 某大学某某先生 the town ōf = the town of Blank 某某城 The result of the game was 3-0 比赛结果是三比零。

7.Money 货币

(1)British currency 英币 6d. = six pence 六便士 1/2d. = a halfpenny 半便士 11/2d. = a peney halfpenny or three halfpeny or three halfpence 一便士半 1/4d. = a farthing 一个铜元 33/4d.= three pence three farghings 三便士三铜元 1s.6d.(or 1/6) = one (shilling) and six (pence) 一先令六便士 £1.18 = (or£1.18s.)= one pound eighteen (shillings) 一镑十八先令 £1.3s.6d. = one pound, three shillings (and) sixpence 4/51/2(or4s.51/2d.) = four (shillings) and five pence halfpenny

(2)U.S. currency ?1.20 dollar (and) twenty (cents) 美金一元二角 ?4.25 = four dollars twenty-five cents 美金四元二角五分

(3)Soviet currency 前苏联币 6 Rb. 15 = six roubles fifteen kopecks 六卢布十五戈比

(4) German currency 德币

1 m. 60 = one mark sixty pfennig -马克六十芬尼

(5)French currency 法国币 1 fr.30 = one franc. thirty (centimes) -法郎三十生丁 0 fr.15 = fifteen centimes 十五生丁

(6) Chinese People’s Currency 人民币 ?1.50 = one yuan and a half 一元五角 JMP 10.35 = JMP ten yuan thirty-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. Weight and Measures 度量衡

(1)length,area, and volume 长度、面积和容积 3 in = three inches 三英寸 15 ft.5 in = fifteen foot five (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, 可以读作 fett. ft 18’6 5/1"= eighteen foot six and a fifth (inches) 10×8feet= ten by eight feet 十英尺长,八英尺宽 5"×4×31/2 = five inches by four by three and a half 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 12 dr. 23 gr.= Twelve drams twenty-three grains 十二打兰二十三喱 10 oz. 4 dr. = Ten ounces four drams 十盎司打兰

(3)Capacity 容量 3 gi. = three gills 三及耳 1 qt. 1 pt = one quart one pint 一夸脱一品脱 [附注] qt.,pt. 的复数是 qts.,pts.,也可以不加 s. 20 gal. 5 qt. =Twenty gallons five quarts 二十加仑五夸脱 5 bu. 3 pk. = Five bushels three pecks 五蒲式耳三配克