数学公式的英语读法大全
数字公式的英文表达
●
n
lim
1 n2
(1 2 n)
读作：The limit as n approaches infinity of the quantity one over n squared times the sum of n positive integers.或The limit as n approaches infinity of the quantity one over n squared times one plus two plus up to plus n. 2 2 2 ● 15x [4 x 6( x x ) 3 x] 读作：Fifteen times x squared minus open bracket minus four times x squared plus six open parenthesis x minus x squared close parenthesis minus three times x close bracket. ● 读 作 ： One-half open brace, a open bracket b plus open parenthesis c minus d close parenthesis close bracket close brace. ● (a＋b)(a－b) ＝ a2－b2 读作：The product of the sum and difference of two terms a and b equals the difference of their squares.
3 ● 0.247 读作： zero point two four, seven three recurring/zero point two four, seven three repetend seven three 1 1 5 105 ● 0.00001 100000 10 读作：Zero point four zeros one equals one over one hundred thousand equals one over ten to the fifth power equals ten to the minus fifth power
常用数学符号及数学表达式的英语读法
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
Vt V t
4 2
3
a
x2
5
a
a equals V sub t minus V over [divided by] t a plus b minus c multiplied by d, all divided by e equals f
数学用语的英文读法
数学式和数学用语的英文读法一、Number 数字106：one million109：one billion (or one thousand million)1012：one trillion (or one million million)1015：one quadrillion(or one thousand million million) 1018：one quintillion (or one million million million)二、Fractions 分数通常将分子读为基数，将分母读为序数。
1/2： a (or one) half1/3： a (or one) third1/4： a quarter or one fourth2/3：two thirds, two over three, or two by three9/10：nine tenths, nine over ten, or nine by ten4‰：four per mill (or mil)三、Decimals 小数0.4：zero (or naught) point four.01：point (or decimal) naught (or oh) one12.34：twelve point three four30.45：thirty point four five,0.3333333…..：point three repeating (or recurring)四、Mathematic Forms 数学式(4-1) Addition 加法1+2=3： One and two are three.2+3=5： Two plus three equals five.4+0=4： Four and naught is equal to four.45+70+152=267： 45, 70 and 152 added are (or make) 267the sum (or total) is 267.(4-2) Subtraction 减法(4-3) Multiplication 乘法(4-4) Division 除法五、Power 幂次方bn 当中，b 被称为底数(base)，n 被称为指数(power or exponent)bn：the nth power of b 或b to the nth power.a107： a times the seventh power of ten.b 的平方： b square or b squaredb 的立方： b cube or b cubedb 的4次方： b to the fourthb 的-1次方： b to the minus one八、其它log(x)：the logarithm of xlogb(x)：t he logarithm of x to the base b5 : 3：five to three45 度角：forty-five degree angle二元一次方程式：linear (or simple) equation with two unknowns一元二次方程式：quadratic equation with one unknown九、符号的英文读法(9-1) Punctuation Marks 标点符号中文英文中文英文§分节号section; division - 破折号dash。
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
数学公式的念法
数学公式的读法(Pronunciation of mathematical expressions) 数学公式的读法
5 函数 函数(Functionivative) of f with respect to x1
∂2 f ∂x 12
the second partial (derivative) of f with respect to x1 the integral from zero to infinity
数学公式的读法(Pronunciation of mathematical expressions) 数学公式的读法
1 逻辑 逻辑(Logic) ∃ there exists
∀
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
∑
i =1
x y
2
x over y all squared
ˆ x
x hat
x
x bar
~ x
x tilde
数学公式的读法(Pronunciation of mathematical expressions) 数学公式的读法
4 线性代数(Linear algebra)
||A||
= x=5 x≠5 x≡y
数学公式的读法(Pronunciation of mathematical expressions) 数学公式的读法
3 实数(Real numbers)
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 x2 x squared / x (raised) to the power 2 x3 x cubed x4 x to the fourth / x to the power four xn x to the nth / x to the power n x-n x to the (power) minus n
常用数学表达式的英文读法
x≡y
x is equivalent to (or identical with) y x is not equivalent to (or identical with) y 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 than x is less than 1 zero is less than or equal to x is less than or equal to 1 mod x / modulus x x squared / x (raised) to the power 2 x cubed x to the fourth / x to the power four x to the nth / x to the power n x to the (power) minus n (square) root x / the square root of x cube root (of) x fourth root (of) x nth root (of) x x plus y all squared x over y all squared n factorial x hat x bar x tilde xi / x subscript i / x suffix i / x sub i
4. Linear algebra x − − → OA OA A
T
the norm (or modulus) of x OA / vector OA OA / the length of the segment OA A transpose / the transpose of A A inverse / the inverse of A 2
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。
数学公式的英文读法
x
1
y y
y
xy / x multiplied by y x
x
x
x
y
y
x
the equals sign x equals 5 / x is equal to 5 x (is) not equal to 5
x
5
1
5
x 5
x
x ≡ y
x≡y
x is equivalent to (or identical with) y
x
x
y
n! x ˆ x ¯ x ˜ xi
i
x
n i=1
ai
the sum from i equals one to n ai / the sum as i runs from 1 to n of the ai
a
a
4. Linear algebra x − − → OA OA AT A−1 the norm (or modulus) of x OA / vector OA
x
OA
x
OA
OA / the length of the segment OA A transpose / the transpose of A A inverse / the inverse of A A 2
OA
A A
A
5. Functions f (x) x → y f (x) f (x) f (x) f (4) (x) ∂f ∂ x1 ∂2f ∂ x2 1 ∞
x
x
the second partial (derivative) of f with respect to x1 f 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