常用数学符号及数学表达式的英语读法
数学运算符号英文读法
数学运算符号英文读法数学运算符号是数学中用于表示各种运算关系的符号。
它们在数学中有着广泛的应用，帮助我们简洁明了地表示复杂的数学表达式和计算过程。
以下是数学运算符号的英文读法：1. 加法符号“+”的英文读法是“plus”或“add”。
2. 减法符号“-”的英文读法是“minus”或“subtract”。
3. 乘法符号“×”的英文读法是“multiply”。
4. 除法符号“÷”的英文读法是“divide”。
5. 等于符号“=”的英文读法是“equal”或“equals”。
6. 不等于符号“≠”的英文读法是“not equal”或“does not equal”。
7. 大于符号“>”的英文读法是“greater than”或“greater than or equal to”。
8. 小于符号“<”的英文读法是“less than”或“less than or equal to”。
9. 大于等于符号“≥”的英文读法是“greater than or equal to”。
10. 小于等于符号“≤”的英文读法是“less than or equal to”。
11. 约等于符号“≈”的英文读法是“approximately equal to”或“almost equal to”。
12. 正无穷大符号“∞”的英文读法是“infinity”。
13. 负无穷大符号“−∞”的英文读法是“negative infinity”。
14. 平方根符号“√”的英文读法是“square root”。
15. 立方根符号“∛”的英文读法是“cubic root”。
16. 绝对值符号“|x|”的英文读法是“absolute value of x”。
17. 圆周率符号“π”的英文读法是“pi”。
18. 自然对数底数e的英文读法是“e”。
19. 无穷小符号“0”的英文读法是“zero”。
20. 正整数集符号N*或N+的英文读法是“the set of positive integers”。
专业英语中常用符号和数学表达式
那你就得了解各种数学名称了，比如“y分之x”是“x over y”，“x乘以y”是“x times y”，“除以”是“divided by”，加plus, 减minus；“x的y次方”是“x to the power of y”，“根”是“root”，几次跟就是几的英语序数形式，6次根=6th root。
1.(A的三次方+B的立方根-CXD的五次方)/E=F 读做:A cube plus the cube root ofB minusC multiplied by the 5th power of D, all divided by E equals F.2.(6+3+7/12-4.35X5)/(9*1/3) 读做: Six plus three and seven twelfths minus four decimal three five multiplied by fiv e, all divided by nine and a third.3. 基本术语：数学 mathematics 数字 number 双数 even number 单数 odd number 计算 calculate口算calculate mentally 笔算calculate using pen-and-paper 竖式vertical form 一位数1-digit number两位数2-digit number 文字题word problem 应用题story problem4、常用符号： ＋ plus、 － minus、 ＝ equal(s)、＞ is greater/more than、＜ is less than ( ) brackets5、加减法及各部分名称：加法 addition 加数 addend 和 sum 减法 subtraction被减数 minuend 减数 subtrahend 差 difference6、数位知识：数位表place value chart 个 Units/Ones 十 Tens 百 Hundreds7、图形名称：长方体 cuboid 正方体 cube 圆柱 cylinder球 sphere长方形 rectangle 正方形 square三角形 triangle 圆 circle边 side 角 angle 面 face专业英语中常用符号和数学表达式1．数的分类complex number 复数zero; naught;0 零real number 实数imaginary number 虚数relational number 有理数irrational number 无理数integer number 整数positive integer number 正整数natural number 自然数negative integer number 负整数fraction 分数decimal 小数odd number 奇数even number 偶数cardinal number 基数ordinal number 序数approximate number 近似数significant number 有效数2．整数addition 加法subtraction 减法addend 加数subtrahend 减数augend 被加数minuend 被减数plus sign 加号minus sign 减号sum 和difference（diffa）差plus; add; and; increase 加minus; decrease; subtract 减is; equal 等division 除法multiplication 乘法divide 除multiply; multiplied by; times 乘divisor 除数multiplier 乘数dividend 被除数multiplicand 被乘数quotient 商product 积remainder 余数positive 正negative 负3．小数和分数numerator 分子denominator 分母decimal point 小数点naught point four 零点四fraction stroke 分数线recurring decimal 循环小数4．百分数percent 百分比interest 利息average 平均数round off 舍入discount 折扣5．幂与指数power 幂; 乘方root-extracting 开方exponent 指数logarithms 对数X squared 某数的平方cube 三次方three cubed 三次方的four 乘四次方cube root 立方根square root 平方根to rise to the power of five 使乘五次方radical sign根号6．代数algebra 代数equation 等式; 方程式inequality 不等式unknown number 未知数absolute value绝对值simple equation 一次方程quadratic equation 二次方程cubic equation 三次方程monomial 单项式polynomial 多项式variable 变量coefficient 系数differential 微分integral 积分derivative 导数function 函数ratio 比proportion 比例sign of equality等号sign of inequality不等号interval 区间matrix 矩阵theorem 定理lemma 引理definition 定义7．常用数学表达式1/2a half; one halfl/3 a third; one third2/3 two thirds1/4 a quarter; one quarter; a fourth; one fourthl/100 a（one）hundredthl/1,000 a（one）thousandth113/324 one hundred and thirteen over three hundred and twenty-four four and two-thirdsforty-five and eighty-nine over twenty-three0.1 one tenth; point one0.01 one hundredth; point zero one0.001 one thousandth; point zero zero one; point two zero one 2050.0357 two thousand and fifty point zero three five seven0.25 zero point two fivepoint two five repetend fivezero point two five recurringzero point three seven twenty-five recurring对483579四舍五入到千位round off 483579 to nearest thousand 108 one followed by eighteen zeros-30.8 negative thirty point eight2-3i two minus three i; two minus three times i2％two per cent; two percent5‰ five per mill; five permill∞infinityx＋y＝zx plus y is z; add x to y is z; x and y is z(x＋y) bracket x plus y bracket closedx-y x minus y; subtract y from x; y from x; x subtracts yx±y x plus or minus yx×y; xy xy; multiply x by y; x multiplied by y; x by y; x times y;x÷ydivide x by y; y into xx over yx : y the ration of x to yx∝y x varies as y; x is in direct proportion to yx＝y x equals y; x is equal to y; x is yx≠y x is not equal to y; x is not yx≡y x is identical to y; x is equivalent to y; x is equivalent to y;x≈y x is approximately equal to y; x approximately equals yx＞y x is greater than y; x is more than yx>>y x is much greater than y; x is far greater than yx≥y x is greater than or equal to yx＜y x is less than yx<<y x is much less than yx≤y x is less than or equal to y0＜x＜1 zero is less than x is less than 1; x is greater than zero and less than 1 0≤x≤1 zero is less than or equal to x is less than or equal to 1x2 x square; x squared; the square of x;the second power of x; x to second powerx3 x cube; x cubed; the cube of x;the third power of x; x to the third powerxn the nth power of x; x to the nth power; x to the power nthe square root of x; x squaredthe cube root of xthe nth root of xx-n x to the (power) minus n(x+y)2x plus y all squaredx over y all squaredx i x i; x subscript i; x suffix i; x sub ilognxlog x to the base n; log of x to the base nlog10x log x to base 10; common logarithmlogex; lnx log x to the base e; log to the base e of y; natural log (of) yex; exp(x) exponential function of x, e to the power xthe summation of x sub i, where i goes from 1 to n;the sum from i equals one to n x i;the sum as i runs from one to n of the x ithe product of x sub i, where i goes from one to nthe product of all x i from i equals one to nthe product of all xi from i equals one to infinitythe absolute value of x; mod x; modulus xthe mean value of x; x barx hatx tildex* x asteriskx primex double primex double prime sub mf(x) f x; f of x; the function f of xa function f from S to Tf¢(x) f prime x; f dash x; the (1st) derivative of f with respect to xf²(x) f double–prime x; f double–dash x; the second derivative of f with respect to x f¢²(x) f triple–prime x; f triple–dash x; the third derivative of f with respect to x f4(x) four x; the fourth derivative of f with respect to xx! n factorial△finite difference or increment△x,δx the increment of xdx dee x; dee of x; differential xdel; nablanth del (nabla)the differential coefficient of y with respect to x;the first derivative of y with respect of xthe second derivative of y with respect of xthe nth derivative of y with respect of xthe partial (derivative) of y with respect to uthe second partial (derivative) of y with respect to xthe partial derivation of z with respect to x of the partial derivative of z with respect to y ∫integral of∫∫double Integral of∫…∫n-fold integral ofthe integral between limits a and b; the integral from a to bthe indefinite integral of a times x with respect to xthe integral from a to b of function of xthe double integral of f of x,ythe limit as x approaches 0the limit as x approaches 0 from abovethe limit as x approaches 0 from belowthere existsfor all∵because∴thereforex⊥y x is perpendicular to yx∥y x is parallel to yx～y the difference between x and yx∝y x varies directly as yxÞy x implies y; if x, then yxÛy x if and only if y; x is equivalent to y; x and y are equivalent { };empty setxÎA x belongs to A; x is an element (or a member) of AxÏA x does not belong to A; x is not an element (or a member) of AAÌB A is contained in B; A is a subset of BAÉB A contains B;B is a subset of AAÇB A cap B; A meet B; A intersection BAÈB A cup B; A join B; A union BA\B A minus B; the difference between A and BA×B A cross B; the Cartesian product of A and B(A与B的笛卡尔积)||A||the norm (or modulus) of Avector FAB; the length of the segment ABAT A transpose; the transpose of AA-1 A inverse; the inverse of Ax→y x maps into y; x is sent (or mapped) to yx→∞x approaches infinity∠xangle xx is perpendicular to yx is parallel to ysin sinecos cosinetg, tan tangentctg, cot cotangentsc, sec secantcsc, cosec cosecantsin-1, arcsin arc sinecos-1, arcos arc cosinesinh the hyperbolic sinecosh the hyperbolic cosine( ) round brackets; parentheses ;the signs of grouping [ ] square（angular）brackets; bracket< > angle bracket{} braces8．常用希腊字母字母读音字母读音字母读音alphabeta ,gamaxi ,psideltaepsilonzeta ,phiomegalambdamnnuetarho,sigmataupi9．其他数学名词line 线angle 角intersecting line 相交线parallel line 平行线triangle 三角形quadrilateral 四边形rectangle 矩形lozenge 菱形square正方形polygon多边形circle圆arc弧perimeter周长area面积diameter直径volume体积10．具体读法实例y=f(x) y is a function of x6×5＝30 six times (multiplied by) five equals (is equal to) thirty(x-y)(x+y) x minus y; x plus ythe fifth root of x squarey-10 y to the minus tenth (power)20 : 5＝16 : 4 the ratio of 20 to 5 equals the ration of 16 to 4 (20 is to 5 as 16 is to 4) e=1.6×10-19 e equals one point multiplied by ten to minus nineteenth power10-n ten to the minus none over n squareone over one minus n times z reversef(x)=ax2+bx+c the function of x equals a times the square of x plus b times x plus c |a|=b the absolute value of a equals that of bmax f(x) the maximum value of f(x)min f(x) the minimum value of f(x)∞ a sub n approaches / tends to infinity◊anthe limit of Sn as n gets arbitrarily large is one thirdx to the fifth power plus A over (divided by) the quantity x squared plus B, to the two-thirds power (A+B)C the quantity A plus B times CA+B=C A plus B equals CA-B=C A minus B equals CA×B=C A multiplied by B equals CA/B=C A divided by B equals CA : B=C : D A is toB of A to B asC is to D11．数学问题求解的一般表示Solve the following system of equationsSolution: multiply equation (1) by (2) and getSubtract equation (2) from equation (4), and getSubtract equation (3) from equation (2), and getfrom equation (5) from equation (6),obtain x and y.。
常用的数学符号和公式的读法
y : partial derivative of y respect to x x
d2y dx2 : second derivative of y respect to x
n
Xi : summation of x sub i, where i goes from 1 to n
i1
n
Xi : product of x sub i, where i goes from 1 to n
精品资料
x x over y
y
x>y
x≥y x< y
xy 0<x<1 0x1
|x| x2 x3 x4
xn
x-n
x is greater than y
x is greater than or equal to y x is less than y
x is less than or equal to y zero is less an x is less than 1
精品资料
b
a f (x)dx : integral of the function of x,between the limits a and b : double integral of
: triple integral of
: n fold integral of
dy : derivative of y respect to x dx
f(x)
fx / f of x / the function f of x
f : S→T
a function f from S to T
x y
f(x)
x maps to y f prime x
数学符号和公式的英语读法
A⊃B A∪B
A×B
3. Real numbers x+1 x−1 xy x±1 (x − y )(x + y ) x y = x=5 x=5 x plus one x minus one x plus or minus one xy / x multiplied by y x minus y , x plus y x over y the equals sign x equals 5 / x is equal to 5 x (is) not equal to 5 1
5. Functions f (x) x→y f (x) f (x) f (x) f (4) (x) ∂f ∂x1 ∂2f ∂x2 1
∞ 0 x→0 x→+0 x→−0
f x / f of x / the function f of x a function f from S to T x maps to y / x is sent (or mapped) to y f prime x / f dash x / the (first) derivative of f with respect to x f double–prime x / f double–dash x / the second derivative of f with respect to x f triple–prime x / f triple–dash x / the third derivative of f with respect to x f four x / the fourth derivative of f with respect to x the partial (derivative) of f with respect to x1 the second partial (derivative) of f with respect to x1 the integral from zero to infinity the limit as x approaches zero the limit as x approaches zero from above the limit as x approaches zero from below log y to the base e / log to the base e of y / natural log (of) y log y to the base e / log to the base e of y / natural log (of) y
常见数学公式和符号的英文读法大全
5 Ε ε epsilon ep`silon 伊普西龙 对数之基数
6 Ζ ζ zeta zat 截塔 系数；方位角;阻抗；相对粘度；原子序数
7 Η η eta eit 艾塔 磁滞系数；效率（小写)
8 Θ θ thet θit 西塔 温度；相位角
○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
‖ parallel 双线号
～ swung dash 代字号
§ section； division 分节号
→ arrow 箭号；参见号
更全面：
1 Α α alpha a：lf 阿尔法 角度；系数
2 Β β beta bet 贝塔 磁通系数；角度；系数
3 Γ γ gamma ga:m 伽马 电导系数（小写）
！ 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
常见数学公式和符号的英文读法大全
+ plus 加号；正号
各种数学符号和表达式的英文读法
各种数学符号和表达式的英文读法.txt52每个人都一条抛物线，天赋决定其开口，而最高点则需后天的努力。
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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 quotat ion 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ªplus 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。
数学符号、公式的英语读法
数学符号和公式的英语读法如下：1.加号"+" 读作"plus"。
2.减号"-" 读作"minus"。
3.乘号"×" 读作"times"。
4.除号"÷" 读作"divided by"。
5.等号"=" 读作"equals"。
6.大于号">" 读作"greater than"。
7.小于号"<" 读作"less than"。
8.不等号"≠" 读作"not equal to"。
9.大于等于号"≥" 读作"greater than or equal to"。
10.小于等于号"≤" 读作"less than or equal to"。
11.约等于号"≈" 读作"approximately equals"。
12.百分号"%" 读作"percent"。
13.度数符号"°" 读作"degree"。
14.开方号"√" 读作"square root"。
15.正负号"±" 读作"plus or minus"。
16.正负平方根号"∛" 读作"cubed root"。
17.正负立方根号"∛" 读作"cubed root"。
英语数学公式、数字、符号的表达法
英语数学公式、数字、符号的表达法!轩治峰（商丘师范学院外语系商丘市!"#$$$）摘要本文主要解决理科专业英语和双语教学中英语算式、方程式、公式中的数字、符号、等式及公式的表达方法。
方法为查阅各种有关资料，收集其表达和读法。
通过查阅资料，本文记述了算术四则运算、分数、小数、比例、乘方、开方、对数、三角函数、集合、函数、几何、微积分等的符号、数字和公式的表达方法和读法，为科技英语教学和学习提供参考。
关键词数学符号算式公式表达法!"#$%&’$%&’()*(+,’+-.&/,(0(’*/,.+-/12+)..&’’3(*’,,/+1,+-.&’,456+7,，,/81,，0121)56’*,+-50.&’50./9,/1:187/,&.’09&/18;%&’0).&+*&0,8+1’.&*+)8&.&’<0*/+),=/12,+-.’3.6++=,+150.&’> 50./9,，,)9&0,0*/.&5’./9，8’+5’.*4，078’6*0，9079)7),，-)19./+1,012+.&’**’-’*’19’6++=,0129+77’9.’2 077.4(’,+-’3(*’,,/+1,，0,?’770,(*+1)19/0./+1,，+-,456+7,，,/81,0121)56’*,/1.&’’@)0./+1,+-50.&>’50./9,012+.&’*,9/’19’,，/1&+(’+-+--’*/18,+5’&’7(.+7’0*1/18012.’09&/18:187/,&/150.&’50./9,+* ,9/’1./-/9:187/,&;()*+,%-#50.&’50./9,,456+7,012,/81,’@)0./+1,-+*5)70’3(*’,,/+1,在大学中，越来越多的学科在尝试英汉双语教学，高年级大学英语也朝专业英语方向发展，而且，在理科学科中，数学、物理等课程中的算式、方程式以及公式是最基本的表达形式。
英文中各种符号标点都怎么说
英文中各种符号标点都怎么说英文中各种符号标点都怎么说2x(-4)=-8你能用英语把这个等式(equation)读出来吗?被难倒了吧!别着急!看完下面双语君给你整理的`各种数学符号和标点符号的英文表达，你马上就会说了!数学符号Mathematical symbols01+: plus 加号;正号“1+1”读作：one plus one02-: minus; negative 减号;负号“2-1”读作：two minus one“-3”读作：minus three或negative three“2-(-3)”读作：two minus negative three03±: plus-minus sign 正负号“±1” 读作：plus or minus one04×: multiplied by ; times 乘号“2×3” 读作：two multiplied by three 或 two times three05÷: divided by 除号“4÷2”读作：four divided by two06=: equals; is equal to 等于号“1+1=2”读作：One plus one equals two.或 One plus one is equal to two.07≠: is not equal to 不等于号“a≠b”读作：a is not equal to b08≌: congruent to 全等(两个图形形状相同、大小相等)“△ABC≌△DEF”读作：Triangle ABC is congruent to Triangle DEF.09≈: approximately equal to 约等于号“3×3≈10” 读作：Three multiplied by three is approximately equal to ten.10<: is less than 小于号“1<2”读作 One is less than two.11>: is greater than 大于号“2>1”读作：Two is greater than one.12≮: is not less than 不小于号“3≮2”读作：Three is not less than two.13≯: is not greater than 不大于号“2≯4” 读作：Two is not greater than four.14≤: is less than or equal to 小于或等于号“2≤3”读作：Two is less than or equal to three.15≥: is greater than or equal to 大于或等于号“5≥4”读作：Five is greater than or equal to four.16%: percent 百分之……“10%”读作：ten percent17‰ : per mill ; per thousand 千分之……“10‰”读作：ten per thousand18∞: infinity 无限大号“-∞” 读作：negative infinity19∝: varies as 与...成比例“X∝Y”读作：X varies as Y20√￣: square root 平方根“√￣16=4”读作：The square root of sixteen is four.213√￣: cube root 立方根“3√￣27=3”读作：The cube root of 27 is 3.22∵: since; because 因为“∵1+1=2”读作：because one plus one equals two23∴: hence; therefore 所以“∴1<2”读作：hence one is less than two24∠: angle 角“∠A”读作：angle A“∠A +∠B+∠C=180°”读作：The measure of angle A plus angle B plus angle C equals 180 degrees.25⌒: semicircle 半圆“⌒AB”读作：semicircle AB26⊙: circle 圆“⊙A”读作：circle A27○: circumference 圆周“○=π×d”读作：Pi multiplied by d equals circumference.28π: pi constant 圆周率“π×d”读作：pi multiplied by d29△: triangle 三角形。
(完整版)数学符号及读法大全,推荐文档
数学符号及读法大全常用数学输入符号：≈≡≠＝≤≥＜＞≮≯∷ ± ＋－× ÷ ／∫∮∝∞∧∨∑∏∪∩∈∵∴⊥‖∠⌒≌∽√（）【】｛｝ⅠⅡ⊕⊙∥αβγδεζηθΔ大写小写英文注音国际音标注音中文注音Ααalpha alfa阿耳法Ββbeta beta贝塔Γγgamma gamma伽马Δδdeta delta德耳塔Εεepsilon epsilon艾普西隆Ζζzeta zeta截塔Ηηeta eta艾塔Θθthetaθita西塔Ιιiota iota约塔Κκkappa kappa卡帕∧λlambda lambda兰姆达Μμmu miu缪Ννnu niu纽Ξξxi ksi可塞Οοomicron omikron奥密可戎∏πpi pai派Ρρrho rou柔∑σsigma sigma西格马Ττtau tau套Υυupsilon jupsilon衣普西隆Φφphi fai斐Χχchi khai喜Ψψpsi psai普西Ωωomega omiga欧米符号含义i-1的平方根f(x)函数f在自变量x处的值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exa^x a的x次方；有理数x由反函数定义ln x exp x 的反函数ax同a^xlogba以b为底a的对数；blogba = acos x在自变量x处余弦函数的值tan x其值等于sin x/cos xcot x余切函数的值或cos x/sin xsec x正割含数的值，其值等于1/cos xcsc x余割函数的值，其值等于1/sin xasin x y，正弦函数反函数在x处的值，即x = sin yacos x y，余弦函数反函数在x处的值，即x = cos yatan x y，正切函数反函数在x处的值，即x = tan yacot x y，余切函数反函数在x处的值，即x = cot yasec 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 yθ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a•b a、b向量的点积(a•b)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。
常用英文数学式符号的读法
常用英文数学式符号的读法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 ArabicNumerals Numerals[附注]拼写规则罗马数字共有7个，即I(1)，V(5)，X(10)，L(50)，C(100)，D(500)，M(1000)。
按照下述的规则可以表示任意正整数。
•重复数次：1个罗马数字重复几次，就表示这个数的几倍。
•右加左减：o在一个较大的罗马数字的右边记上一个较小的罗马数字，表示大数字加小数字。
o在一个较大的罗马数字的左边记上一个较小的罗马数字，表示大数字减小数字。
o但是，左减不能跨越一个位数。
比如，99不可以用IC表示，而是用XCIX表示。
（等同于阿拉伯数字每位数字分别表示）▪例如：999 = 900+90+9 = CM+XC+IX = CMXCIX o此外，左减数字不能超过1位，比如8写成VIII，而非IIX。
o同理，右加数字不能超过3位，比如14写成XIV，而非XIIII。
•加线乘千：在1个罗马数字的上方加上1条横线或者在右下方写M，表示将这个数乘以1000，即是原数的1000倍。
o同理，如果上方有2条横线，即是原数的1000000倍。
•例外：由于IV是古罗马神话主神朱庇特（IVPITER，古罗马字母没有J和U）的首字，因此有时用IIII代替IV。
(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 trillion2.Fractions 分数通常将分子读为基数，将分母读为序数。
常用数学符号大全(注音及注解)
数学符号及读法大全常用数学输入符号：≈≡≠＝≤≥＜＞≮≯∷±＋－×÷／∫∮∝∞∧∨∑∏∪∩∈∵∴//⊥‖∠⌒≌∽√（）【】｛｝ⅠⅡ⊕⊙∥αβγδεζηθΔ符号含义i -1的平方根f(x) 函数f在自变量x处的值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^xlogb a 以b为底a的对数； b logba = acos x 在自变量x处余弦函数的值tan x 其值等于 sin x/cos xcot x 余切函数的值或 cos x/sin xsec 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符号 含义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 yθ 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 a • b a 、b 向量的点积 (a •b) 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。
数学专有名词及科学计数法表达式英文读法
加号（+）：plus; sum of;is increased by减号（-）：minus; is reduced by; is decreased by除号（÷）：divided by;quotient乘号（×）：times;product of等于（=）：is equal to;equals;is;gives;results in;becomes未知数（n,x,y,z）：a number例子：n+2: a number is increased by 210÷n: 10 divided by a number5×n=15：the product of five and a number is fifteen(20÷n)-2=10：twenty divided by a number,reduced by two is ten20÷(n-2)=10: twenty, divided by a number,reduced by two is ten8n+6=11:the product of eight and a number,plus six gives eleven8×(n+6)=11:the product of eight,and a number plus six equals eleven12÷（n+4）=2:twelve divided by a number which is increased by four becomes twox÷2+3=x-7:a number divided by two,plus three is the same number minus seven(x+4)²=709+5(x):a number increased by four,all squared,equals seven hundred nine plus fiv e times the number大于0：positive小于0：negative基数：basis指数：exponent科学计数法：scientific notation 有理数：rational number自然数：natural number整数：integer分数：fraction 小数点：decimal倒数：reciprocal;multiplicative inverse 比例：ratio百分数：percent平方根：square root估算：estimate平面直角坐标系：Cartesian Planex轴：X axisY轴：Y axis变量：variable方程：equation勾股定理：pythagorean relationship 斜边：hypotenuse角：angle 直角：right angle四边形：quadrilateral平行四边形：parallelogram平行：paralle三角形：triangle矩形：rectangle菱形：rhombus梯形：trapezoid正方形：square 周长：perimeter体积：volume面积：area多边形：polygon (圆)周长：circumference 直径：diameter半径：radius棱镜：prism圆柱：cylinder立方体：cube表面积：surface area放大：enlargement 缩小：reduction比例尺：scale区域：region统计：statistic可能性：probability数据：data(复数形式，一般使用复数)平均数：mean中位数：median众数：mode极差：range锐角：acute angle高：altitude;height顶点：vertex二项式：binomial平分线：bisector容量：capacity系数：coefficientseven multipled by ten to the power of minus seven7 * (10^(minus 7)) = 7.0 × 10-7seven multipled by ten to the power of negative seven seven times ten to the negative seventh power6.02×1023six point zero two times ten to the power of twenty-three。
最全面最标准的数学符号公式的英语读法大全
最全面最标准的数学符号公式的英语读法大全目前国内绝大部分的英语学习，仍然停留在日常交流和一些常识性知识的英语。
我们虽然受过高等教育，但是专业的、学术的英语学习仍然匮乏，我们的课本是中文的、老师用中文授课、我们的知识体系也是中文的。
所以在阅读原版教材、写英文论文、参加国际学术交流等很多时候，会遇到英语瓶颈。
真正能够应用英语来进行知识的学习，工作等，起码需要明白数学中的英语，希望这篇文章能给您带来帮助。
基本数学符号1. 加减乘除"+"当作运算符加号时读作plus，比如：1+2 ➡️ one plus two当"+"放在数字前表示正数时，读作positive，比如：+4 ➡️ positive four同样，“-”也有minus和negative两种读法，分别是减号和负数。
"×" 两种读法都可以，国外的教授会常常读成times，可能因为比较简单吧，比如：9x6 ➡️nine times six“÷”只有一种读法divided by，就是被…分成几份15÷3 ➡️ fifteen is divided by three注意：其中plus和minus是不用第三人称单数形式的，因为plus和minus根本就不是动词，而是介词。
但是乘和除，的的确确是动词，出现第三人称单数的形式。
2. 比较运算符比较运算符用来比较两个表达式的大小关系，比如：1+4>3 ➡️ one plus four is greater than three为什么用is？这里one plus four 是介词plus 连接两个名词，但是one plus four 作为一个整体当作主语，因此不用are，而是is4+5=9 ➡️ four plus five equals nine 或 four plus five is equal to nine 其他的类推，只要你认识数学符号，应该不难用英语说出来。
数学符号英文说法和发音大全(符号英文)
数学符号英文说法和发音大全！！各路出国党不妨看过来！Symbols+ plus /'pl?s/- minus /'ma?n?s/±plus or minus /'pl?s ?: 'ma?n?s/x multiplied by /'m?lt?pla?d ba?// over; divided by /'??v?/ /d?'va?d?d/÷divided /d?'va?d?d/= equals /'?:kw?lz/≈approximately, similar /?'pr?ks?m?tl?/ /'s?m?l? t?/≡equivalent to; identical /?k'w?v?l?nt t?/ /a?'dent?kl t?/≠ not equal to /'n?t 'i?kw?l t?/> greater than /'gre?t? e?n/< less than /'les e?n/≥ greater than or equal to /'gre?t? e?n ?r 'i?kw?l t?/≤ less than or equal to /'les e?n ?r' i?kw?l t?/?not greater than /'n?t 'gre?t? e?n/?not less than /'n?t 'les e?n/?much greater than /'m?? 'gre?t? e?n/?much less than /'m?? 'les e?n/⊥perpendicular to /p??p?n'd?kj?l? t?/∣∣parallel to /'p?r?lel t?/?not equivalent to, not identical to /'n?t ?k'w?v?l?nt t?/ /'n?t a?'dent?kl t? ??not similar to /'n?t 's?m?l? t?/2squared /'skwe?d/3cubed /'kju:bd/4 to the fourth; to the power four /t? e? 'f??θ/ /te e? 'pɑ?? f??/n to the n; to the nth; to the power n /t? e? en; t? d?enθ; t? e? pɑ??r en/√root; square root /ru:t/ /skwe? ru:t/?cube root /kju:b ru:t/?fourth root /f??θ ru?t/! factorial /f?k't??r??l/% percent /p?'sent/∞infinity /?n'f?n?t?/∝varies as; proportional to /'v??r?z/ /pr?'p????n?l/˙dot /d?t/¨double dot /d?bl d?t/: is to, ratio of /re?????/f(x) fx f; function /ef/ /'f??k??n/f'(x) f dash; derivative /d??/ /d?'r?v?t?v/f''x f double-dash; second derivative /'d?bl d??/ /'sek?nd d?'r?v?t?v/f'''(x) f triple-dash; f treble-dash; third derivative /'tr?pl d??/ / trebl d??/ /θ？:d d?'r?v?t?v'r?v?t?v/f(4) f four; fourth derivative /f??θ d??partial derivative, delta /pa???l d?'r?v?t?v/ /delt?/∫integral /'?nt?gr?l/∑sum /s?m/w.r.t. with respect to /w?e 'r?spekt/log log /l?g/log?x log to the base 2 of x /l?g t? e? be?s tu: ?v eks/∴therefore /'e??f??/∵because /b?'k?z/→gives, leads to, approaches /g?vz/ /li:dz t?/ /?pr????z// per /p?:/∈belongs to; a member of; an element of /b?'l??z/ /'memb?/ /'el?m?nt/?does not belong to; is not a member of; is not an element of /n?t b?'l??/ /n?t ? 'memb?/ /n?t ?n 'e ?contained in; a proper subset of /k?n'te?nd ?n/ /'pr?p? 's?bset/?contained in; subset /'s?bset/?intersection /'?nt?sek??n/?union /'ju?n??n/?for all /f? r?:l/cos x cos x; cosine x /k?z/sin x sine x /sa?n/tan x tangent x /tan/cosec x cosec x /'k??sek/sinh x shine x /'?a?n/cosh x cosh x /'k??/tanh x than x /θ?n/|x| mod x; modulus x /m?d/ /'m?dj?l?s/℃degrees Centigrade /d?'gri:z 'sent?gre?d/℉degrees Fahrenheit /d?'gri:z 'f?r?nha?t/°K degrees Kelvin /d?'gri:z 'kelv?n/C absolute zero /abs?lu:t zi:r??/0°K, –273.15 °mm millimetre /'m?l?mi?t?/cm centimetre /'sent?mi?t?/cc, cm3cubic centimetre, centimetre cubed /'kju?b?k 'sent?mi?t?/ /'sent?mi?t? 'kju: m metre /'mi?t?/km kilometre /k?'l?m?t?/mg milligram /'m?l?gr?m/g gram /gr?m/kg kilogram /'k?l?gr?m/AC A.C. /e? si:/DC D.C. /di: si:/Examplesx + 1 x plus onex -1 x minus onex ± 1 x plus or minus onexy x y; x times y; x multiplied by y(x — y)(x + y) x minus y, x plus yx/y x over y; x divided by y;x ÷ y x divided by yx = 5 x equals 5; x is equal to 5x ≈ y x is approximately equal to yx ≡ y x is equivalent to y; x is identical with yx ≠ y x is not equal to yx > y x is greater than yx < y x is less than yx ≥ y x is greater than or equal to yx ≤ y x is less than or equal to y0 < x < 1 zero is less than x is less than 1; x is greater than zero and less than 10 ≤ x ≤ 1zero is less than or equal to x is less than or equal to 1; x is greater than or equal to zero and less than or equal to 1x2x squaredx3x cubedx4 x to the fourth; x to the power fourxn x to the n; x to the nth; x to the power nx-n x to the minus n; x to the power of minus n√root x; square root x; the square root of x?the cube root of x?the fourth root of xthe nth root of x(x + y)2x plus y all squared(x/y)2x over y all squaredn! n factorial; factorial nx% x percent∞infinityx ∝y x varies as y; x is (directly) proportional to yx ∝1/y x varies as one over y; x is indirectly proportional to y?x dot?x double dotf(x) fx f of x; the function of xf'(x) f dash x; the (first) derivative of with respect to xf''x f double-dash x; the second derivative of f with respect to xf'''(x) f triple-dash x; f treble-dash x; the third derivative of f with respect to xf(4) f four x; the fourth derivative of f with respect to x?v the partial derivative of v?v?θdelta v by delta theta, the partial derivative of v with respect to θ?2v?θ２delta two v by delta theta squared; the second partial derivative of v with respect to dv the derivative of vdvdθ d v by d theta, the derivative of v with respect to thetad2vdθ２ d 2 v by d theta squared, the second derivative of v with respect to theta,∫integralintegral from zero to infinity∑sumthe sum from i equals 1 to nw.r.t. with respect tologey log to the base e of y; log y to the base e; natural log (of) y∴therefore∵because→gives, approachesΔx → 0delta x approaches zerolimΔx→０the limit as delta x approaches zero, the limit as delta x tends to zeroLtΔx→０the limit as delta x approaches zero, the limit as delta x tends to zerom/sec metres per secondx ∈ A x belongs to A; x is a member of A; x is an element of Ax? A x does not belong to A; x is not a member of A; x is not an element of AA? B A is contained in B; A is a proper subset of BA ?B A is contained in B; A is a subset of BA ?B A intersection BA ?B A union Bcos x cos x; cosine xsin x sine xtan x tangent x, tan xcosec x cosec xsinh x shine xcosh x cosh xtanh x than x|x| mod x; modulus x18 ℃eighteen degrees Centigrade70 ℉seventy degrees FahrenheitGreek alphabetΑαalpha /'?lf?/Ββbeta /'bi:t?/Γγgamma /'g?m?/Δδdelta /'delt?/Εεepsilon /'epsil?n/Ζζzeta /'zi?t?/Ηηeta /'i?t?//Θθtheta /'θi?t?Ιιiota /a?'??t?/Κκkappa /'k?p?/Λλlamda /'l?md?/Μμmu /'mju?/Ννnu /'nju?/Ξξxi /'ksa?/Οοomicron /'??m?kr?n/ Ππpi /'pa?/Ρρ？rho /'r??/Σσsigma /'s?gm?/Ττtau /'tɑ?/Υυupsilon /'j?ps?l?n/ Φφphi /'fa?/Χχchi /'ka?/Ψψ psi /'psa?/Ωω omega /'??m?g?/ ^Roman alphabetA a /'e?/B b /'bi?/C c /'si?/D d /'di?/E e /'i?/F f /'ef/G g /'?i?/H h /'e??/I i /'a?/J j /'?e?/K k /'ke?/L l /'el/M m /'em/N n /'en/O o /'??/P p /'pi?/Q q /'kju?/R r /'ɑ?/S s /'es/T t /'ti:/U u /'ju:/V v /'vi:/W w /'d?blju?/X x /'eks/Y y /'wa?/Z z /'zed/^Fractions? a half /? 'hɑ:f/? a quarter /? 'kw??t?/z/? three quarters /θri? 'kw??t?:d/? a third /?'θ？:dz/? two thirds /tu: 'θ？?a fifth /? 'f?fθ／?t wo fifths /tu: 'f?fθs/?t hree fifths /θri? 'f?fθs/?f our fifths /f?? 'f?fθs/?a sixth /? 's?ksθ／?f ive sixths /fa?v 's?ksθs/? an eighth /?n 'e?tθ／? three eighths /θri? 'e?tθs/? five eighths /fa?v 'e?tθs/? seven eighths /sev?n 'e?tθs/^Decimal Fractions0.1 nought point one /n?:t p??nt w?n/0.01 nought point oh one /n?:t p??nt ?? w?n/0.0001 nought point oh oh oh one /ten p??nt ?????? w?n/1.1 one point one /w?n p??nt w?n/1.2 one point two /w?n p??nt tu:/1.23 one point two three /w?n p??nt tu: θri:/1.0123 one point oh one two three /w?n p??nt ?? w?n tu: θri:/10.01 ten point oh one /ten p??nt ?? w?n/21.57 twenty-one point five seven /'twent? w?n p??nt fa?v 'sev?n/2.6666666666.... two point six recurring /tu: p??nt s?ks r?'k?:r??/'k?:r??/ 2.612361236123... two point six one two three recurring /tu: p??nt s?ks w?n tu: θri: r? 2.5 million two point five million /tu: p??nt fa?v 'm?lj?n/^SI Units: Prefixes10-24 yocto y /'j?kt??/10-21 zepto z /'zept??/10-18 atto a /'at??/10-15 femto f /'femt??/10-12 pico p /'pi:k??/10-9 nano n /'nan??/10-6 micro μ/'ma?kr??/10-3 milli m /'m?l?/10-2 centi c /'sent?/10-1 deci d /'des?/103 kilo k /'k?l??/106 mega M /'meg?/109 giga G /'g?g?/1012 tera T /'ter?/1015 peta P /'pet?/1018 exa E /'eks?/1021 zetta Z /'zet?/1024 yotta Y /'j?t?/1027 xona X /'z??n?/1030 weka W /'wek?/1033 vunda V /'v?nd?/^Cardinal Numbers1 one /w?n/2 two /tu:/3 three /θri:/4 four /f??/5 five /fa?v/6 six /s?ks/7 seven /'sev?n/8 eight /e?t/9 nine /na?n/10 ten /ten/11 eleven /?'lev?n/12 twelve /twelv/:'ti:n/13 thirteen /θ？14 fourteen /f??'ti:n/15 fifteen /f?f'ti:n/16 sixteen /s?kst'i:n/17 seventeen /seven'ti:n/18 eighteen /e?'ti:n/19 nineteen /na?n'ti:n/20 twenty /'twent?/21 twenty-one /twent?'w?n/22 twenty-two /twent?'tu:/23 twenty-three /twent?'θri:/24 twenty-four /twent?'f??/25 twenty-five /twent?'fa?v/26 twenty-six /twent?'s?ks/27 twenty-seven /twent?'sev?n/28 twenty-eight /twent?'e?t/29 twenty-nine /twent?'na?n/:t?/30 thirty /'θ？40 forty /'f??t?/50 fifty /'f?ft?/60 sixty /'s?kst?/70 seventy /'sev?nt?/80 eighty /'e?t?/90 ninety /'na?nt?/100 a hundred; one hundred /? 'h?ndr?d/ /w 101 a hundred and one /? 'h?ndr?d ?n 102 a hundred and two /? 'h?ndr?d ?n 110 a hundred and ten /? 'h?ndr?d ?n 120 a hundred and twenty /? 'h?ndr?d ?n 200 two hundred /tu: 'h?ndr?d/ 300 three hundred /θri: 'h?ndr?d 400 four hundred /f?? 'h?ndr?d/ 500 five hundred /fa?v 'h?ndr?d/ 600 six hundred /s?ks 'h?ndr?d/ 700 seven hundred /'sev?n 'h?ndr? 800 eight hundred /e?t 'h?ndr?d/ 900 nine hundred /na?n 'h?ndr?d/ 1 000 a thousand, one thousand /?θ'ɑ?z?nd 1 001 a thousand and one /?'θɑ?z?nd 1 010 a thousand and ten /?'θɑ?z?nd 1 020 a thousand and twenty /?'θɑ?z?nd 1 100 one thousand, one hunded /w?n 'θɑ?z 1 101 one thousand, one hundred and one /w?n 'θɑ?z 1 110 one thousand, one hundred and ten /w?n 'θɑ?z9 999 nine thousand, nine hundred and ninety-nine /na?n 'θɑ?10 000 ten thousand /ten 'θɑ?15 356 fifteen thousand, three hundred and fifty six /'f?fti:n 'θ100 000 a hundred thousand /? 'h?ndr?d 'θ1 000 000 a million /? 'm?lj?n/100 000 000 a hundred million /? 'h?ndr?d 'm?1 000 000 000 a billion /? 'b?lj?n/100 000 000 000 a hundred billion /? 'h?ndr?d 'b?l 1 000 000 000 000 a trillion /? 'tr?lj?n/1 000 000 000 000 000 a quadrillion /? kw?dr?lj?n/ 1 000 000 000 000 000 000 a quintillian /? kw?n't?lj?n/ 1 000 000 000 000 000 000 000 a sextillion /? seks't?lj?n/1 000 000 000 000 000 000 000 000 a septillion /? sep't?lj?n/1 000 000 000 000 000 000 000 000 000 an ocillion /?n ?kt't?lj?n/1 000 000 000 000 000 000 000 000 000 000 a nonillion /? n?n'?lj?n/1 000 000 000 000 000 000 000 000 000 000 000 a decillion /? de's?lj?n/^Ordinal Numbers1st first /f?:st/2nd second /'sek?nd/:d/3rd third /θ？4th fourth /f?:θ／5th fifth /f?fθ／6th sixth /s?ksθ／7th seventh /'sev?nθ／8th eighth /e?tθ／9th ninth /na?nθ／10th tenth /tenθ／11th eleventh /?'lev?nθ／12th twelfth /'twelfθ／:'ti:nθ／13th thirteenth /θ？14th fourtheenth /f??'ti:nθ／15th fidteenth /f?f'ti:nθ/16th sixteenth /s?ks'ti:nθ／17th seventeenth /seven'ti:nθ／18th eighteenth /e?'ti:nθ／19th nineteenth /na?n'ti:nθ／20th twentieth /'twent??θ／21st twenty-first /twent?'f?:st/22nd twenty-second /twent?'sek?nd/:d/23rd twenty-third /twent?'θ？24th twenty-fourth /twent?'f?:θ／25th twenty-fifth /twent?'f?fθ／26th twenty-sixth /twent?'s?ksθ／27th twenty-seventh /twent?'sev?nθ／28th twenty-eighth /twent?'e?tθ／29th twenty-ninth /twent?'na?nθ／30th thirtieth /'θ??t??θ／'f?:st/31st thirty-first /θ??t?40th fortieth /'f?:t??θ／50th fiftieth /'f?ft??θ／100th hundredth /'h?ndr?dθ／1 000th thousandth /'θɑ?z?ndθ／1 000 000th millionth /'m?lj?nθ／。
英文经常使用数学符号公式和等式的读法
一、常用数学符号、公式和等式的读法 + 加号,加 plus + 正号 positive - 减号,减 minus - 负号,负 negetive ± 加或减 plus or minus ± 正或负 plus or minus · 乘 multiplied by times into ÷ 除 divided by : 比 proportional to = 等号 equal sign = 等于 to equal,to equals > 大于 greater than < 小于 less than ≥大于等于 greater than or equal ≤小于等于less than or equal ≡恒等于 identical with ≈约等于 approximately equal ≌全等于 congruent ～等价于 equivalent to; 相似于 similar to →趋近于 approaches ( ) 括号,括弧 1) parentheses;parenthesis;sign parenthesis 圆括号,圆括弧 2) round brackets [ ] 方括号1) squre [angular] brackets 括号2) brackets { } 花括号 braces ∑求和summstion of;sigma 从 1到n的和 the sum form i equalsone to n;sigma 从1到n的积 the product formi equalsone to n x1 +x2+x3+ΛΛ x one x two plus x three,etc(et cetera) a=b 1) a equals to b 2) a is equal to b 3) a is b a≠b a is not equal to b;a is not b a>b a is greater than b a a≥b a is greater than or equal to b a≤b a is less than or equal to b a≈b a approximately equal (s) b a∝b a varies directly as b;a is (directly) proportional to b a∈A a is member of set A A⊂B A is contained in B;A is a proper subset of B AIB A intersection B AYB A union { }或φ empty set ⇒ implies ⇔ is equivalent to xRy x is in therelation R to y a±b a plus or minus b (a+b)(a-b) a plus b,a minus b (a+b)2 a plus b all squared (a÷b)2 a over b all squared n! n factorial;factorial n a% a persent |a| mod a;modulus a x→∞ x approaches infinity 0< x 0≤x≤a zero is less than or equal to x is less than or equal to a c=a.b 1)c equals (is equal to) a multiplied by b 2) c equals a times b 1:2 the ratio of one to two 1/2 a half;one half 1/3 a third;one third 1/100 a[one] hundredth 1/1000 a[one] thousandth 0.1(.1) zero point one;nought point one 0.01(.01) zero point zero one;nought point nought one 3.1416 three point one four one six 14. one four point one four,one four recurring a:b the ratio of a to b a:b=c 1) a devided by b equals c 2) a devided by b is c 3)the ratio of a to b is c a:b=c:d 1) the ratio of a to b equals the ratio of c to d 2) a is to b as c is to d a+b>c a plus b is greater then c a+b< then b plus> a+b=c a plus b is (are;equals;is equal to) c a-b=c a minus b(b from a) is(equals;is equal to;leaves) c (a,b) a<X [a,b]a≤x≤b the closed interval from a to b (a,b) the interval a<X≤B< td> [a,b] the interval a≤x<B< td> a<X a≤x≤b a is less then or equal to x is less then or equal to b logax logarithm (base) of x lnx natural logarithm of x x2 1)x square;x squured 2) x to the second power 3) x raised to the second power 4) the square of x 5) the second power of x 6) x to the second x3 1)x cube;x cubed 2) x to the third power 3) x raised to the third power 4) the cube of x 5) the third power of x 6) x to the third x n 1)x to the n-th power 2) x raised to the n-th power 3) the n-th power of x 4) x to the n-th x-n 1) x to the minus n-th 2) x to the minus n-th power radical =b 1) the square root of ais(equals) b 2) the square root out of a is(equals) b the square root of a the cube root of a the cube root the n-th root a′ a prime a n 1) a second prime 2) a double prime 3) a twice dashed; a m 1) a triple prime 2) a third prime a1 1) a sub one 2) a first a2 1) a sub two 2) a seconda m 1) a sub m 2) a m-th a'm 1) a prime,sub m 2) a sub m,prime a'1 a first prime a n2 a second, second prime y first derivative of y second derivative of y dy/dx first derivative of y with respect to x d2y/dx2 second derivative of y with respect to x y=f(x) y is a function of x ∫ integral of 1) integral of……from a to b 2) integral of……between limits a and b capital L equals the square root of (out of ) capital R square plus minus x square a to the m by n-thpower equals the n-th root of (out of) a to the m-th power P=∞ p is equal to infinity ∠ angle ⊥ perpendicular;is perpendicular to ∥ parallel;is parallel to △ABC triangje ABC vector F a bar ≌ is congruent to ～ is similar t A-1 inverse of matrix A % percent 二、英语缩写词abs absolute绝对的absolutely绝对地A.D Anno Domini公元ad inf ad infinitum趋于无限ads address地址agg aggregate总数、共计al algebra代数alt altitude高度alternate交错,交替上述的a.m above-mentioned算术平均a.m.arithmeticmeanamt amount数量ans answer答案、解答、回答与或非AoI and-or-inverter等差数列A.P arithmeticprogressionappl application应用appr approximate近似、约计appx appendix附录arg argument自变数,幅角arith arithmetic算术aut automatic自动的auxiliary辅助的aux,auxilav,avg average平均Ax Axiom公理公元前B.C BeforeChrist二进制编码的十进制BCD Binary CodedDecimal二进制编码的八进制BC.O Binary CodedOctal℃(c)centigrate摄氏度C cubic立方的cycle周centi厘,百分之一ca circa大约计算机辅助设计CAD Computer-Aided Design计算机辅助教学CAI Computer-AidedInstructioncalcd calculated计算的cat catalog (ue)目录,一览表逆时针方向C.C.W Counter-Clockwise中心距离c.d centredistancecf.confer参看、见、比较重心cg center ofgravity厘米·克·秒(单位)制C.G.S CentimetreGrammeSecondCh.Chapter章chap chapter章char character字符cir circular圆形的圆周circum circumferencecit cited引用ckt circuit电路C.l.center-line中心线算术平均法,平均高度法C.L.A center lineaveragemethodcm centimetre厘米coeff.coefficient系数com common公,公共col column行,纵行,栏,项目,柱pare比较con contra相反conclusion结论圆锥曲线con.sec conicsectionsconst constant常数construction作图continued续,接cont(contd)Contr.Contracted省略的Contraction省略Cor corollary推论,系cp compare比较ct constant常数circuit电路,线路ctr (s)center (s)中心cu (cub)cubic立方C.W.clockwise顺时针方向CY cycle周期,周d degree度D density密度diameter直径date日期数字计算机D.C.digitalcomputer微分方程D.E differentialequationdefinition定义def(def’n)deg degree度求证demon demonstrativeden density密度der derivative导数,微商det detail详细,细节,详图(十进)小数DF decimalfractiondia (m)diameter直径diag diagram图,图解diff difference差,不同DIV divide除Do (d°)ditto同上,同前,如前所述doub double加倍,二倍,成双的,成倍的数据处理DP dataprocessingE east东edit edition版,版本允许的误差e.e errorexpected例如e.g exempligratia=forexampleeq.equal相等eqequation等式,方程(eq’n)esp.especially特别et al et alii及其他et alibi及别处etc et cetera等等et seq et sequentia及以下等等ex (s)example(s)例exercise练习,习题extra特别的ext external外部的exterior在外f frequency频率fig figure图,图形fn function函数,功能FQCY frequency频率fxd fixed固定的,不变的g(gm)gramme克平均值GA generalaverageG.C.D greatest 最大公约数commondivisor最大公因子G.C.F greatestcommonfactor最大公约数G.C.M greatestcommonmeasuregeom.geometry几何学等比数列,几何数列G.P geometricalprogressiongr(grm)gram克h hour小时height高,高度最高公因式,最大公约数H.C.F.highestcommonfactorhf half半hor horizontal水平的hr hour小时hyp hypothesis假设ibibidem在同处(书,文献等出处) (ibid)id idem同前,同上,同作者,同样iden identical恒等,全等即,就是,换言之i.e id est=thatisig idem quod如同逆(反)时针的ih invertedhourim image图像inc increase增加ind index索引,指标,刻度indef indefinite无限,不定in.ex in extenso全部inf infinity无穷大,无限大infra上、下限逆(反)时针的inh invertedhourint interior内部的,在内int.al inter alia尤其I/O input/output输入/输出信息技术IT informationtechnology信息论informationtheory独立变数IV independentvariableJ journal期刊,杂志jour journal期刊,杂志kg kilogram千克km kilometer千克l length长度l.c loco citato上述引文中最小公倍数(式)L.C.M.least commonmultiple最低公倍式Lowest commonmultipleLgth length长度l.h left hand左方,左侧lim limit极限lin linear直线的,一次的,线性的lit liter(公)升loc location位置loc.cit loco citato上述引文中最低(数)位,最右(数)位ISD leastsignificantdigitM mega兆(106)mille千M(m)medium中间,中等m metre米milli毫(10-3)million兆(106)minute分钟μ(mu)micro微(10-6)平均绝对误差mae meanabsoluteerrormag magnitude量,大小math mathematical数学的mathematics数学max maximum最大,最大值min minimum最小,最小值minute分钟mo (s)month(s)月mon monthly月刊MS mean square均方n net净N number数,编号,第…号North北Northern北方的n.a.s.c necessaryandsufficie nt condition充要条件,充分且必要的条件N.B nota bene=note well注意neg negative负的Net network网络No(s)number(s)数,编号,第…号nr near在…附近O.D.E.ordinarydifferentialequation常微分方程opp opposed相反的,对面ord ordinary普通的,通常的p page页PAR parallel平行的,平行线,并联的par paragraph节,段P.C.per cent百分比pcs pieces个,件,份P.D.E partialdifferentialequation偏微分方程PERT programevaluationandreview techniques计划评审技术(统筹方法) ph phase相位,相pos positive正的pp pages负(复数)p.p proportional 比例部分partPr pair偶,对pr(pri,pry)primary初级,最初的prep perpendicular垂直,正交proc proceeding学报,会刊ps pseudo伪,假pt(s)part(s)部分p.t.o please turnover 请见(本页的)反面,请翻到下页q question问题q.e quod est这就是,即Q.E D quod eratdemonstrandum 证毕,证完,这就是所要证的,所求证者w.r.t with respectto关于,相对于。
英文,常用数学符号、公式和等式的读法
英⽂,常⽤数学符号、公式和等式的读法⼀、常⽤数学符号、公式和等式的读法+ 加号,加 plus+ 正号 positive- 减号,减 minus- 负号,负 negetive± 加或减 plus or minus± 正或负 plus or minus2 乘 multiplied by times into÷ 除 divided by: ⽐ proportional to= 等号 equal sign= 等于 to equal,to equals> ⼤于 greater than< ⼩于 less than⼤于等于 greater than or equal⼩于等于less than or equal≡恒等于 identical with≈约等于 approximately equal≌全等于 congruent～等价于 equivalent to;相似于 similar to→趋近于 approaches( ) 括号,括弧 1) parentheses;parenthesis;sign parenthesis圆括号,圆括弧 2) round brackets[ ] ⽅括号1) squre [angular] brackets括号2) brackets{ } 花括号 braces∑ 求和summstion of;sigma从1到n的和 the sum form i equalsone to n;sigma从1到n的积 the product form i equalsone to nx1 +x2+x3+ΛΛ x one x two plus x three,etc(et cetera)a=b 1) a equals to b2) a is equal to b3) a is ba≠b a is not equal to b;a is not ba>b a is greater than baa?b a is greater than or equal to ba?b a is less than or equal to ba≈b a approximately equal (s) ba∝b a varies directly as b;a is (directly) proportional to ba∈A a is member of set AA?B A is contained in B;A is a proper subset of B AIB A intersection B AYB A union{ }或φ empty setimpliesis equivalent to xRy x is in the relation R to y a±b a plus or minus b (a+b)(a-b) a plus b,a minus b(a+b)2 a plus b all squared(a÷b)2 a over b all squaredn! n factorial;factorial na% a persent|a| mod a;modulus ax→∞ x approaches infinity0< x0?x?a zero is less than or equal to x is less than or equal to ac=a.b 1)c equals (is equal to) a multiplied by b2) c equals a times b1:2 the ratio of one to two1/2 a half;one half1/3 a third;one third1/100 a[one] hundredth1/1000 a[one] thousandth0.1(.1) zero point one;nought point one0.01(.01) zero point zero one;nought point nought one3.1416 three point one four one six14. one four point one four,one four recurringa:b the ratio of a to ba:b=c 1) a devided by b equals c2) a devided by b is c3)the ratio of a to b is ca:b=c:d 1) the ratio of a to b equals the ratio of c to d2) a is to b as c is to da+b>c a plus b is greater then ca+b< then b plus>a+b=c a plus b is (are;equals;is equal to) ca-b=c a minus b(b from a) is(equals;is equal to;leaves) c (a,b) a[a,b]a?x?b the closed interval from a to b(a,b) the interval a[a,b] the interval a?xaa?x?b a is less then or equal to x is less then or equal to blogax logarithm (base) of xlnx natural logarithm of xx2 1)x square;x squured2) x to the second power3) x raised to the second power4) the square of x5) the second power of x6) x to the secondx3 1)x cube;x cubed2) x to the third power3) x raised to the third power4) the cube of x5) the third power of x6) x to the thirdx n 1)x to the n-th power2) x raised to the n-th power3) the n-th power of x4) x to the n-thx-n 1) x to the minus n-th2) x to the minus n-th powerradical=b 1) the square root of a is(equals) b 2) the square root out of a is(equals) bthe square root of athe cube root of athe cube rootthe n-th roota′ a primea n 1) a second prime2) a double prime3) a twice dashed;a m 1) a triple prime2) a third primea1 1) a sub one2) a firsta2 1) a sub two2) a seconda m 1) a sub m2) a m-tha'm 1) a prime,sub m2) a sub m,primea'1 a first primea n2 a second, second primey first derivative of ysecond derivative of ydy/dx first derivative of y with respect to xd2y/dx2 second derivative of y with respect to xy=f(x) y is a function of x∫ integral of1) integral of……from a to b2) integral of……between limits a and bcapital L equals the square root of (out of ) capital R square plus minus x squarea to the m by n-th power equals the n-th root of (out of) a to the m-th powerP=∞ p is equal to infinity∟ angle⊥ perpendicular;is perpendicular to∠ parallel;is parallel to△ABC triangje ABCvector Fa bar≌ is congruent to～ is similar tA-1 inverse of matrix A % percent⼆、英语缩写词abs absolute 绝对的absolutely 绝对地A.D Anno Domini 公元ad inf ad infinitum 趋于⽆限ads address 地址agg aggregate 总数、共计al algebra 代数alt altitude ⾼度alternate 交错,交替a.m above-mentioned 上述的a.m. arithmetic mean 算术平均amt amount 数量ans answer 答案、解答、回答AoI and-or-inverter 与或⾮等差数列A.P arithmeticprogressionappl application 应⽤appr approximate 近似、约计appx appendix 附录arg argument ⾃变数,幅⾓arith arithmetic 算术aut automatic ⾃动的aux,auxil auxiliary 辅助的av,avg average 平均Ax Axiom 公理B.C Before Christ 公元前⼆进制编码的⼗进制BCD Binary Coded DecimalBC.O Binary Coded Octal ⼆进制编码的⼋进制℃(c)centigrate 摄⽒度C cubic ⽴⽅的cycle 周centi 厘,百分之⼀ca circa ⼤约CAD Computer-Aided计算机辅助设计Design计算机辅助教学CAI Computer-AidedInstructioncalcd calculated 计算的cat catalog (ue) ⽬录,⼀览表C.C.W Counter-Clockwise 逆时针⽅向c.d centre distance 中⼼距离cf. confer 参看、见、⽐较cg center of gravity 重⼼厘⽶2克2秒(单位)制C.G.S Centimetre Gramme SecondCh. Chapter 章chap chapter 章char character 字符cir circular 圆形的circum circumference 圆周cit cited 引⽤ckt circuit 电路C.l. center-line 中⼼线算术平均法,平均⾼度法C.L.A center line average methodcm centimetre 厘⽶coeff. coefficient 系数com common 公,公共col column ⾏,纵⾏,栏,项⽬,柱comp. compare ⽐较con contra 相反conclusion 结论con.sec conic sections 圆锥曲线const constant 常数construction 作图contcontinued 续,接(contd)Contr. Contracted 省略的Contraction 省略Cor corollary 推论,系cp compare ⽐较ct constant 常数circuit 电路,线路ctr (s) center (s) 中⼼cu (cub) cubic ⽴⽅C.W. clockwise 顺时针⽅向CY cycle 周期,周d degree 度D density 密度diameter 直径date ⽇期D.C. digital computer 数字计算机微分⽅程D.E differentialequationdef(def’n)definition 定义deg degree 度demon demonstrative 求证den density 密度der derivative 导数,微商det detail 详细,细节,详图DF decimal fraction (⼗进)⼩数dia (m) diameter 直径diag diagram 图,图解diff difference 差,不同DIV divide 除Do (d°)ditto 同上,同前,如前所述doub double 加倍,⼆倍,成双的,成倍的DP data processing 数据处理E east 东edit edition 版,版本e.e error expected 允许的误差例如e.g exempligratia=forexampleeq. equal 相等eq (eq’n)equation 等式,⽅程esp. especially 特别et al et alii 及其他et alibi 及别处etc et cetera 等等et seq et sequentia 及以下等等ex (s) example(s) 例exercise 练习,习题extra 特别的ext external 外部的exterior 在外f frequency 频率fig figure 图,图形fn function 函数,功能FQCY frequency 频率fxd fixed 固定的,不变的g(gm) gramme 克GA general average 平均值最⼤公约数G.C.D greatest commondivisorG.C.F greatest commonfactor最⼤公约数G.C.M greatest commonmeasuregeom. geometry ⼏何学G.P geometrical等⽐数列,⼏何数列progressiongr(grm) gram 克h hour ⼩时height ⾼,⾼度H.C.F. highest common最⾼公因式,最⼤公约数factorhf half 半hor horizontal ⽔平的hr hour ⼩时hyp hypothesis 假设ib (ibid) ibidem 在同处(书,⽂献等出处) id idem 同前,同上,同作者,同样iden identical 恒等,全等i.e id est=that is 即,就是,换⾔之ig idem quod 如同ih inverted hour 逆(反)时针的im image 图像inc increase 增加ind index 索引,指标,刻度indef indefinite ⽆限,不定in.ex in extenso 全部inf infinity ⽆穷⼤,⽆限⼤infra 上、下限inh inverted hour 逆(反)时针的int interior 内部的,在内int.al inter alia 尤其I/O input/output 输⼊/输出信息技术IT informationinformation信息论theory独⽴变数IV independentvariableJ journal 期刊,杂志jour journal 期刊,杂志kg kilogram 千克km kilometer 千克l length 长度l.c loco citato 上述引⽂中最⼩公倍数(式)L.C.M. least commonmultipleLowest common multiple 最低公倍式Lgth length 长度l.h left hand 左⽅,左侧lim limit 极限lin linear 直线的,⼀次的,线性的lit liter (公)升loc location 位置loc.cit loco citato 上述引⽂中最低(数)位,最右(数)位ISD least significantdigitM mega 兆(106)mille 千M(m) medium 中间,中等m metre ⽶milli 毫(10-3)million 兆(106)minute 分钟µ(mu) micro 微(10-6)mae mean absoluteerrormag magnitude 量,⼤⼩math mathematical 数学的mathematics 数学max maximum 最⼤,最⼤值min minimum 最⼩,最⼩值minute 分钟mo (s) month(s) ⽉mon monthly ⽉刊MS mean square 均⽅n net 净N number 数,编号,第…号North 北Northern 北⽅的n.a.s.c necessary andsufficient condition 充要条件,充分且必要的条件N.B nota bene= note 注意wellneg negative 负的Net network ⽹络No(s) number(s) 数,编号,第…号nr near 在…附近常微分⽅程O.D.E. ordinarydifferentialequationopp opposed 相反的,对⾯ord ordinary 普通的,通常的p page 页PAR parallel 平⾏的,平⾏线,并联的par paragraph 节,段P.C. per cent 百分⽐pcs pieces 个,件,份P.D.E partialdifferentialequationPERT programevaluation andreview techniques 计划评审技术(统筹⽅法)ph phase 相位,相pos positive 正的pp pages 负(复数)p.p proportional part ⽐例部分Pr pair 偶,对pr(pri,pry) primary 初级,最初的prep perpendicular 垂直,正交proc proceeding 学报,会刊ps pseudo 伪,假pt(s) part(s) 部分p.t.o please turn over 请见(本页的)反⾯,请翻到下页q question 问题q.e quod est 这就是,即Q.E D quod erat证毕,证完,这就是所要证的,所求证者demonstrandum w.r.t with respect to 关于,相对于。
数学表达式的英语读法
基础篇1.加减乘除"+"当作运算符加号时读作plus，比如：1+2? oneplustwo当"+"放在数字前表示正数时，读作positive，比如：+4? positivefour同样，“-”也有minus 和negative 两种读法，分别是减号和负数。
"×"两种读法都可以，国外的教授会常常读成times，比如：9x6? ninetimes six“÷”只有一种读法dividedby ，就是被⋯分成几份，?15÷fifteen3is dividedbythree注意：其中plus 和minus 是不用第三人称单数形式的，因为plus 和minus 根本就不是动词，而是介词。
但是乘和除，的的确确是动词，出现第三人称单数的形式。
您记住了吗？2.比较运算符比较运算符用来比较两个表达式的大小关系，比如：1+4>3 ? oneplusfourisgreaterthanthree 。
这里oneplusfour 是oneplusfour 作为一个整体当作主语，因此不用是介词plus连接两个名词，但are，而是is。
4+5=9 ? fourplusfiveequalsnine 或fourplusfiveisequaltonine 3.括号英语里小括号，中括号，大括号这三个词也是没有一点相似，分别是：parenthesis ，bracket，brace.左括号叫做left或open，右括号叫做right或closed.4.级数表示到中学数学了～这张表里的“a”是变量，而不是冠词“一个”的意思哦。
|a|是a的绝对值或绝对值a，英文读作absolutevalueofa, 非常好理解。
a'是什么？a撇就是与a相关又不想重复的时候会用一下，英语里读成aprime,同样有两撇adoubleprime，三撇atripleprime⋯但是注意了，如果a'表示时间分秒里的分，或者其他有具体意义的时候，就要按照具体的意义去读了。
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0.01 + = { } log n x log 10 x log e x O point O one ; zero point zero one; nought point nought one a third; one third minus; negative plus or minus multiplied by; times divided by is equal to; equals is identically equal to is approximately equal to; approximately equals round brackets; parentheses square brackets; angular brackets braces intersection union is equivalent to therefore because log x to the base n log x to the base 10 (common logarithm) log x to the base e (natural logarithm) the nth power of x; x to the power n
y 10
y to the minus tenth(power) the square root of 4 is plus or minus 2 the cubic root of a the fifth root of x square
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常用数学符号及数学表达式的读法
x2
x square; x squared. The square of x; the second power of x; x to the second power
f(x) y=f(x) dx dy dx
d2y dx 2 dny dx n
y xLeabharlann the nth derivative of y with respect to x the partial derivative of y with respect to x integral integral between limits a and b infinity vector F x plus y bracket a plus b bracket closed a equals b; a is equal to b; a is b a is not equal to b; a is not b a plus or minus b a is approximately equal to b a is greater than b a is much greater than b a is greater than or equal to b a is less than b a is less than or equal to b a is much less than b x approaches infinity angle a a is parallel to b s equals [is equal to] v multiplied by t; s equals v times t v equals s divide by t; v is s over t
5 2 25
the second power of 5 is 25; 5 square is 25; the square of 5 is 25; 5 to the second power is equal to 25
y3
y cube; y cubed; the cube of y; y to the third power; y to the third
sin 1 x
x a
|x| x b’ b’’ b’’’ b1 bm
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常用数学符号及数学表达式的读法
x
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x two dots b double prime sub m function f of x y is a function of x dee of x; dee x; differential x the first derivative of y with respect to x; dee y dee x the second derivative of y with respect to x
n
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x ,
xa
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the nth root of x, x to the power one over n x approaches the limit a arc sine of x x approaches the limit a summation of; sigma the absolute value of x x bar b prime b double prime b triple prime b sub one b sub m x dot
(a b c d ) e f
5% 5%o
five per cent five per mille
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