常用数学符号的英文表达

常用数学符号的英文表达English Expression of the Mathematical Symbol in Common Use

第一部分英汉微积分词汇

Part1 English-Chinese Calculus V ocabulary

第一章函数与极限

Chapter1 Function and Limit

集合set

元素element

子集subset

空集empty set

并集union

交集intersection

差集difference of set

基本集basic set

补集complement set

直积direct product

笛卡儿积Cartesian product

开区间open interval

闭区间closed interval

半开区间half open interval

有限区间finite interval

区间的长度length of an interval

无限区间infinite interval

领域neighborhood

领域的中心centre of a neighborhood

领域的半径radius of a neighborhood

左领域left neighborhood

右领域right neighborhood

映射mapping

X到Y的映射mapping of X ontoY

满射surjection

单射injection

一一映射one-to-one mapping

双射bijection

算子operator

变化transformation

函数function 逆映射inverse mapping

复合映射composite mapping

自变量independent variable

因变量dependent variable

定义域domain

函数值value of function

函数关系function relation

值域range

自然定义域natural domain

单值函数single valued function

多值函数multiple valued function

单值分支one-valued branch

函数图形graph of a function

绝对值函数absolute value

符号函数sigh function

整数部分integral part

阶梯曲线step curve

当且仅当if and only if(iff)

分段函数piecewise function

上界upper bound

下界lower bound

有界boundedness

无界unbounded

函数的单调性monotonicity of a function 单调增加的increasing

单调减少的decreasing

单调函数monotone function

函数的奇偶性parity(odevity) of a function

对称symmetry

偶函数even function

奇函数odd function

函数的周期性periodicity of a function

周期period

反函数inverse function

直接函数direct function

复合函数composite function

中间变量intermediate variable

函数的运算operation of function

基本初等函数basic elementary function

初等函数elementary function

幂函数power function

指数函数exponential function

对数函数logarithmic function

三角函数 trigonometric function

反三角函数 inverse trigonometric function 常数函数 constant function 双曲函数 hyperbolic function 双曲正弦 hyperbolic sine 双曲余弦 hyperbolic cosine 双曲正切 hyperbolic tangent

反双曲正弦 inverse hyperbolic sine 反双曲余弦 inverse hyperbolic cosine 反双曲正切 inverse hyperbolic tangent 极限 limit

数列 sequence of number 收敛 convergence 收敛于 a converge to a 发散 divergent

极限的唯一性 uniqueness of limits

收敛数列的有界性 boundedness of a

convergent sequence

子列 subsequence

函数的极限 limits of functions

函数()f x 当x 趋于x 0时的极限 limit of functions ()f x as x approaches x 0 左极限 left limit 右极限 right limit

单侧极限 one-sided limits

水平渐近线 horizontal asymptote 无穷小 infinitesimal 无穷大 infinity

铅直渐近线 vertical asymptote 夹逼准则 squeeze rule

单调数列 monotonic sequence

高阶无穷小 infinitesimal of higher order 低阶无穷小 infinitesimal of lower order 同阶无穷小 infinitesimal of the same order 等阶无穷小 equivalent infinitesimal 函数的连续性 continuity of a function 增量 increment

函数()f x 在x 0连续 the function ()f x is continuous at x 0

左连续 left continuous 右连续 right continuous

区间上的连续函数 continuous function 函数()f x 在该区间上连续 function ()f x is continuous on an interval 不连续点 discontinuity point

第一类间断点 discontinuity point of the first kind

第二类间断点 discontinuity point of the second kind

初等函数的连续性 continuity of the elementary functions

定义区间 defined interval

最大值 global maximum value (absolute maximum)

最小值 global minimum value (absolute minimum)

零点定理 the zero point theorem 介值定理 intermediate value theorem

第二章导数与微分

Chapter2 Derivative and Differential 速度 velocity

匀速运动 uniform motion 平均速度 average velocity

瞬时速度 instantaneous velocity 圆的切线 tangent line of a circle 切线 tangent line

切线的斜率 slope of the tangent line 位置函数 position function 导数 derivative 可导 derivable

函数的变化率问题 problem of the change rate of a function

导函数 derived function 左导数 left-hand derivative 右导数 right-hand derivative 单侧导数 one-sided derivatives

()f x 在闭区间【a,b 】上可导 ()f x is

derivable on the closed interval [a,b] 切线方程 tangent equation 角速度 angular velocity 成本函数 cost function 边际成本 marginal cost 链式法则 chain rule

隐函数implicit function

显函数explicit function

二阶函数second derivative

三阶导数third derivative

高阶导数nth derivative

莱布尼茨公式Leibniz formula

对数求导法log- derivative

参数方程parametric equation

数学运算英语表示

英语加减乘除表达 1.加减乘除公式 ⑴ A＋B＝C A plusB equals/is C 20＋5＝25 Twenty plus 5 equals/is twenty-five. ⑵ A－B＝C A minusB equals/is C 20－5＝15 Twenty minus 5 equals/is fifteen. ⑶ A×B＝C A multiplied byB equals/is C 20×5＝100 Twenty multiplied by 5 equals/is one hundred. ⑷ A÷B＝C A divided byB equals/is C 20÷5＝4 Twenty divided by 5 equals/is four. 2.加减乘除口语化的表达 ⑴ Add twenty and five, we can get twenty-five. ⑵ Subtract five from twenty, we can get fifteen. ⑶ Multiply twenty by five, we can get one hundred. ⑷ Divide twenty by five, we can four. 3. 用how much对加减乘除进行提问 ⑴Twenty minus five equals fifteen. How much does twenty minus five equal? ⑵Twenty minus five is fifteen. How much is twenty minus five? 英语分数、小数及百分数的表达 1.表达形式 ⑴分数 ①基本规则：子基母序（即：分子用基数词，分母用序数词） 1/3 one third 1/8 one eighth 1/12 one twelfth ②当分子大于1时，分母要加s变成复数。 2/3 two thirds 3/8 three eighths 5/12 five twelfths ③特殊的表达： 1/4 可以表示为 one fourth 或者 a quarter 3/4 可以表示为 three fourth 或者 three quarters 1/2 a half ⑵.小数小数点前后的数均按基数词来读，小数点读成point，小数点后的数字逐位读出。 3.1415926 three point one four one five nine two six 0.463 zero point four six three ⑶.百分数汉语中先读百分号，再读数字；英语中恰恰相反：先念出数字，再加上百分号percent 80% eighty percent 99.5% ninety-nine point five percent

数学符号英文表示

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＞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 πpi 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

数学符号的英文读法

常用的数学英语表述 1.Logic ?there exist ?for all p?q p implies q / if p, then q p?q p if and only if q /p is equivalent to q / p and q are equivalent 2.Sets x∈A x belongs to A / x is an element (or a member) of A x?A x does not belong to A / x is not an element (or a member) of A A?B A is contained in B / A is a subset of B A?B A contains B / B is a subset of A A∩B A cap B / A meet B / A intersection B A∪B A cup B / A join B / A union B A\B A minus B / the diference between A and B A×B A cross B / the cartesian product of A and B 3. Real numbers x+1 x plus one x-1 x minus one x±1 x plus or minus one xy xy / x multiplied by y (x - y)(x + y) x minus y, x plus y x y x over y = the equals sign x = 5 x equals 5 / x is equal to 5 x≠5 x (is) not equal to 5 x≡y x is equivalent to (or identical with) y x ≡ y x is not equivalent to (or identical with) y x > y x is greater than y x≥y x is greater than or equal to y x < y x is less than y x≤y x is less than or equal to y 0 < x < 1 zero is less than x is less than 1 0≤x≤1 zero is less than or equal to x is less than or equal to 1 | x | mod x / modulus x x 2 x squared / x (raised) to the power 2 x 3 x cubed x 4 x to the fourth / x to the power four

特殊符号英文读法

asterisk (*) plus sign (+) minus sign (-) forward slash (/) backslash (\) percent symbol (%) exclamation point symbol (!) underscore (_) equal sign (=) decimal points (.) semicolon (;) increment (++) operators decrement (--) operators ( ) Parenthesis { } Braces [ ] Brackets , Comma ; Semicolon ' Quote @ At +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

数学公式的英文表达

数学公式的英文表达 Pronunciation of mathematical expressions The pronunciations of the most common mathematical expressions are given in the list below. In general, the shortest versions are preferred (unless greater precision is necessary). 1. Logic 9 there exists 8 for all p ) q p implies q / if p, then q p , q p if and only if q /p is equivalent to q / p and q are equivalent 2. Sets x 2 A x belongs to A / x is an element (or a member) of A x =2 A x does not belong to A / x is not an element (or a member) of A A ? B A is contained in B / A is a subset of B A ? B A contains B / B is a subset of A A \ B A cap B / A meet B / A intersection B A [ B A cup B / A join B / A union B A n B A minus B / the di?erence between A and B A ￡ B A cross B / the cartesian product of A and B 3. Real numbers x + 1 x plus one x ° 1 x minus one x ? 1 x plus or minus one xy xy / x multiplied by y (x ° y)(x + y) x minus y, x plus y x y x over y = the equals sign x = 5 x equals 5 / x is equal to 5 x 6= 5 x (is) not equal to 5 1 x ￥ y x is equivalent to (or identical with) y x 6￥ y x is not equivalent to (or identical with) y x > y x is greater than y x ? y x is greater than or equal to y x < y x is less than y x · y x is less than or equal to y 0 < x < 1 zero is less than x is less than 1 0 · x · 1 zero is less than or equal to x is less than or equal to 1 jxj mod x / modulus x x2 x squared / x (raised) to the power 2 x3 x cubed x4 x to the fourth / x to the power four

常用符号和运算符的英语描述

一、数学运算符号的英文表达(小数、分数、百分数和运算符号) 1. 小数表示法 (1) 小数的读法小数点左边的数通常按基数词读，若为三位以上的数，也可按编码式读法读出，即将数字单个读出；小数点右边的数通常按编码式读法单个读出。如： 6.86 six point eight six 14.15 fourteen point one five 345.456 three four five point four five six 或three hundred and forty－five point four five six (2) 小数中“0”的读法 “0”在小数中通常读作nought（英）或zero（美），也可读作字母o。如： 0.08 （nought）point nought eight 或（zero）point zero eight 9.07 nine point o seven 2. 百分数表示法百分数中的百分号％读作percent。如： 6% 读作six percent 0.6% 读作（nought）point six percent 500% 读作five hundred percent 3. 倍数表示法倍数表示方法很多，如： This room is four times as big as mine. 这个房间是我房间的四倍。 This room is three times larger than that one. 这个房间比那个房间大两倍。 The output of coal has doubled. 煤的产量增加了一倍。 My aunt is as old again as I am. 我姑姑年龄比我大一倍。 Productivity is increased three fold. 生产效率提高了两倍。 The volume of the Sun is about 1,300,000 times that of the Earth. 太阳的体积约为地球的1300000倍。 4. 加减乘除式的读法 6+5＝11 Six plus five is eleven 或Six and five is eleven. 11-6＝5 Eleven minus six is five. 或Six from eleven is five. 4×5＝20 Four multiplied by five is twenty.或Four times five is twenty. 20÷4＝5 Twenty divided by four is five. 或Four into twenty goes five.

这些符号用英语怎么读

这些符号用英语怎么读键盘上的英文怎么读： ` backquote 反引号 ~ tilde ! exclam @ at # numbersign,英语国家是hash，美语是pound,音乐里作sharp,如C# $ dollar % percent ^ caret & ampersand * asterisk,star(美语),数学公式中作multiply ( parenleft,opening parentheses ) parenright,closing paretheses - minus;hyphen连字符,不读 _ underscore + plus = equal [ bracketleft,opening bracket ] bracketright,closing bracket { braceleft } braceright ; semicolon : colon ' quote " doublequote / slash backslash 反斜杠 | bar , comma < less > greater . period ? question space 空格其他符号的读法＜is less than ＞is more than ≮is not less than ≯is not more than

≤ is less than or equal to 小于或等于号 - hyphen 连字符 ≥ is more than or equal to 大于或等于号 ' apostrophe 省略号,英文中省略字符用的撇号;所有格符号％percent －dash 破折号 ‰ per mille ∞ infinity 无限大号 ∝varies as 与…成比例 ( ) parentheses 圆括号 √ (square) root 平方根 [ ] square brackets 方括号 ∵since; because 因为《》French quotes 法文引号;书名号 ∴hence 所以 … ellipsis 省略号 ∷equals, as (proportion) 等于，成比例 ¨tandem colon 双点号 ∠angle 角 ∶ditto 双点号 ⌒semicircle 半圆 ‖ parallel 双线号 ⊙circle 圆／virgule 斜线号 ○ circumference 圆周～swung dash 代字号 △triangle 三角形 §section; division 分节号 ⊥perpendicular to 垂直于 → arrow 箭号；参见号 ∪union of 并，合集 ∩ intersection of 交，通集 ∫ the integral of …的积分 ±plus or minus 正负号 ∑ summation of 总和 ×is multiplied by 乘号 °degree 度 ÷is divided by 除号 ′ minute 分〃second 秒 ≠ is not equal to 不等于号 ≡ is equivalent to 全等于号 ℃Celsius degree 摄氏度 ≌is equal to or approximately equal to 等于或约等于号

各种数学符号的英文表达

“加减乘除”怎么说？各种数学符号的英文表达，看完学渣变学霸！不知大家还记得当年所画过的函数图吗？不停地标点，画线，有时候为了画出好看的弧度，甚至要多擦几遍才能做到...每一条函数都有不一样的形状，把它们组合起来，也许会有意想不到的效果噢数学，相信对于不少人，特别是文科班女生的来说，都是一个大难题。在考试时，靠的就是自己的英语来拉分。那么，想要用英语来说出数学公式，又该怎么表达呢？

一. 首先区分一下Equations 和Formulas的使用 1. An equation等式 says that two things are equal. It will have an equals sign "=" like this: x + 2 = 6 2. A formula公式 is a special type of equation that shows the relationship between different variables. 也是一种特殊的等式，只不过展示的是不同变量之间的关系举个栗子：我们常用到的长方体的体积等于长X宽X高就是一个formula V = lwh V stands for volume, l for length, w for width, and h for height. 3. Algebra代数不用多说，就是XY未知数，多年实战，你们懂的

二. 符号要说公式，总不能只说个字母就完事吧，加减乘除先来一翻1.加号+ plus x + 1：x plus one 2.减号- minus x -1：x minus one 3.乘号x multiplied by x times y; x multiplied by y 4.除号÷ over; divided by x over y; x divided by y; 除了这些小学的算术题外，还有这些 1.约等于x ≈ y x is approximately equal to y 2.大于等于x ≥ y x is greater than or equal to y 3.小于等于x ≤ y x is less than or equal to y

常用数学符号大全

常用数学符号大全 Company Document number：WTUT-WT88Y-W8BBGB-BWYTT-19998

常用数学输入符号：～～≈ ≡ ≠ ＝≤≥ ＜＞≮≯∷ ±＋－ × ÷／∫ ∮∝∞ ∧∨∑ ∏ ∪∩ ∈∵∴//⊥‖ ∠⌒≌∽√（）【】｛｝ⅠⅡ⊕⊙∥αβγδεζηθΔαβγδεζηθικλμνξοπρστυφχψω ΑΒΓΔΕΖΗΘΙΚ∧ΜΝΞΟ∏Ρ∑ΤΥΦΧΨΩ абвгдеёжзийклмнопрстуфхцчшщъыьэюя АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ

sin(x) 在自变量x处的正弦函数值 exp(x) 在自变量x处的指数函数值，常被写作e x a^x a的x次方；有理数x由反函数定义 ln x exp x 的反函数 a x同 a^x log b a 以b为底a的对数； b log b a = a cos x 在自变量x处余弦函数的值 tan x 其值等于 sin x/cos x cot x 余切函数的值或 cos x/sin x sec x 正割含数的值，其值等于 1/cos x csc x 余割函数的值，其值等于 1/sin x asin x y，正弦函数反函数在x处的值，即 x = sin y acos x y，余弦函数反函数在x处的值，即 x = cos y atan x y，正切函数反函数在x处的值，即 x = tan y acot x y，余切函数反函数在x处的值，即 x = cot y asec x y，正割函数反函数在x处的值，即 x = sec y acsc x y，余割函数反函数在x处的值，即 x = csc y θ角度的一个标准符号，不注明均指弧度，尤其用于表示atan x/y，当x、y、z用于表示空间中的点时 i, j, k 分别表示x、y、z方向上的单位向量 (a, b, c) 以a、b、c为元素的向量 (a, b) 以a、b为元素的向量 (a, b) a、b向量的点积 ab a、b向量的点积 (ab) a、b向量的点积 |v| 向量v的模 |x| 数x的绝对值 Σ表示求和，通常是某项指数。下边界值写在其下部，上边界值写在其上部。如j从1到100 的和可以表示成：。这表示1 + 2 + … + n M 表示一个矩阵或数列或其它 |v> 列向量，即元素被写成列或可被看成k×1阶矩阵的向量

数学运算符的英文表达

数学运算符号的英文表达小数、分数、百分数和运算符号 1. 小数表示法 (1) 小数的读法小数点左边的数通常按基数词读，若为三位以上的数，也可按编码式读法读出，即将数字单个读出；小数点右边的数通常按编码式读法单个读出。如： 6.86 six point eight six 14.15 fourteen point one five 345.456 three four five point four five six 或three hundred and forty－five point four five six (2) 小数中“0”的读法 “0”在小数中通常读作nought（英）或zero（美），也可读作字母o。如： 0.08 （nought）point nought eight 或（zero）point zero eight 9.07 nine point o seven 2. 百分数表示法百分数中的百分号％读作percent。如： 6% 读作 six percent 0.6% 读作（nought） point six percent 500% 读作five hundred percent 3. 倍数表示法

倍数表示方法很多，如： This room is four times as big as mine. 这个房间是我房间的四倍。 This room is three times larger than that one. 这个房间比那个房间大两倍。The output of coal has doubled. 煤的产量增加了一倍。 My aunt is as old again as I am. 我姑姑年龄比我大一倍。 Productivity is increased three fold. 生产效率提高了两倍。 The volume of the Sun is about 1,300,000 times that of the Earth. 太阳的体积约为地球的1300000倍。 4. 加减乘除式的读法 6+5＝11 Six plus five is eleven 或Six and five is eleven. 11-6＝5 Eleven minus six is five. 或Six from eleven is five. 4×5＝20 Four multiplied by five is twenty.或Four times five is twenty. 20÷4＝5 Twenty divided by four is five. 或Four into twenty goes five. 15:5＝3 The ratio of fifteen to five is three. 32 Three squared is nine. 23 Two cubed is eight. 24 The fourth power of two is sixteen. X^(1/2)=Y The square root of X is Y. X^(1/3)=Y The cubic root of X is Y. a ＞ b a is more than b. a ＜ b a is less than b. a ≈ b a approximately equals to b. a ≠ b a is not equal to b.

英语口译符号缩写

一、缩略词英语当中缩略词使用的频率很高，如IMP: important, ASAP: as soon as possible。很显然如果能熟练掌握缩略词，会对考试大有裨益。缩略词的写法一般为四种方式： F拿掉所有元音 MKT: market MGR: manager MSG: message STD: standard RCV: receive F保留前几个字母 INFO information INS insurance EXCH exchange I owe you IOU In stead of I/O F保留开头和结尾个发音字母 WK week RM room PL people F根据发音 R are THO though THRU through 高级口译听力常用英语缩略词表缩略词原词 APT Apartment ACC Accountant ACDG According ACPT Accept AD Advertisement ADS Address ADV Advice AMAP As much/many as possible AMT Amount APV Approve ASAP As soon as possible BAL Balance BLDG Building CERT Certificate CFM Conform CNCL Cancel

CNF Conference CMI Commission CMP Complete CMPE Compete/competitive CMU Communication CONC Concern/concerning/concerned COND Condition CO. Company DEPT Department DISC Discount DPT Departure EXCH Exchange EXPLN Explain EXT Extent FLT Flight FNT Final FRT Freight FYR For your reference GD Good GUAR Guarantee H.O. Home office INFO Information IMPS Impossible IMP(T) Important INCD Include INDIV Individual INS Insurance INTST Interested I/O In stead of IOU I owe you IVO In view of MANUF Manufacture MDL Model MEMO Memorandum MGR Manger MIN Minimum MKT Market MSG Message NCRY Necessary NLT No later than OBS Observe OBT Obtain ORD Ordinary PAT Patent

各种符号英语大全

∴ 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

各种数学符号英文翻译

+ 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 πpi 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

数学符号的英语表达

1.Logic ?there exist ?for all p?q p implies q / if p, then q p?q p if and only if q /p is equivalent to q / p and q are equivalent 2.Sets x∈A x belongs to A / x is an element (or a member) of A x?A x does not belong to A / x is not an element (or a member) of A A?B A is contained in B / A is a subset of B A?B A contains B / B is a subset of A A∩B A cap B / A meet B / A intersection B A∪B A cup B / A join B / A union B A\B A minus B / the diference between A and B A×B A cross B / the cartesian product of A and B 3. Real numbers x+1 x plus one x-1 x minus one x±1 x plus or minus one xy xy / x multiplied by y (x - y)(x + y) x minus y, x plus y x/y x over y = the equals sign x = 5 x equals 5 / x is equal to 5 x≠5 x (is) not equal to 5 x≡y x is equivalent to (or identical with) y x≡/y（x不等于y)x is not equivalent to (or identical with) y x > y x is greater than y x?y x is greater than or equal to y x < y x is less than y x?y x is less than or equal to y 0 < x < 1 zero is less than x is less than 1 0?x?1 zero is less than or equal to x is less than or equal

GMAT常用数学符号与英文解释

+ plus, positive －minus, negative ×multiplied by, times ÷(／) divided by = is equal to, equals ≠ not equal to ≈ is approximately equal to, approximately equals ＞greater than ＜less than ≥ equal to or greater than ≤ equal to or less than >> much greater than << much less than ∈is a member of the set ( ) round brackets, parentheses [ ] square brackets { } braces ∽similar to ≌congruent to ⊥perpendicular to, at right angles with ∥parallel to ∠angle

⊙circle e the base o f natural logarithms, approx. 2. 71828 π pi; the ratio of the circumference of a circle to its diameter, diameter, approx, 3.14159 n! factorial n, n( n－1) ( n－2) (n－3) (1) ︱x︱the absolute value of x X2 raised to the second power X3 X cube; X cubed; the cube of X; X to the third power; the third power of X; X raised to the third power X-10 X to the minus tenth( tenth power) √x the square root of x 3√x the cube root of x X n the nth power of X, X to the power n, X raised to the nth power, X to the nth power 1/X n one over X to the n α 5/β2 α to the five over β squared X1/n(n√X) the nth root of X, X to the power one over n y=f(x) y is a function of x a+b a plus b; the sum of a and b; the total of a and b; a added to b; a increased to b; a increased by b; a more than b; a greater than b a－b a minus b; a less b the difference of a and b; from a subtract b; a takes away b; a decreased by b; a diminished by b; b is

英语中数学符号表达

Pronunciation of Mathematical Expressions The pronunciations of the most common mathematical expressions are given in the list below. In general, the shortest versions are preferred (unless greater precision is necessary). 1、Logic 2、Sets 3、Real numbers x x plus one 1 + x x minus one 1 - ± x x plus or minus one 1 xy xy / x multiplied by y x+ y -x minus y, x plus y ) )( (y x

y x x over y / x on y ＝ the equals sign 5=x x equals 5 / x is equal to 5 5≠x x (is) not equal to 5 y x ≡ x is equivalent to (or identical with) y x ≠y x is not equivalent to (or identical with) y y x > x is greater than y y x ≥ x is greater than or equal to y y x < x is less than y y x ≤ x is less than or equal to y 1 0<