各种数学符号的英文读法

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2023年12月30日发(作者：)

x’ 读作 x prime

x'’ 读作 x double prime or x second prime

x’’’ 读作 x triple prime

点：dot

/: slash.

: backslash

Punctuation marks

apostrophe ( ' ) ( ’ )

brackets ( ( ) ) ( [ ] ) ( { } ) ( 〈 〉 )

colon ( : )

comma ( , )

dashes ( ‒ ) ( – ) ( — ) ( — )

ellipsis ( … ) ( ... )

exclamation mark ( ! )

full stop/period ( . )

hyphen ( - ) ( ‐ )

interrobang ( ‽ )

question mark ( ? )

quotation marks ( ‘ ’ ) ( “ ” )

semicolon ( ; )

slash/solidus ( / )

space ( ) and interpunct ( • )

Other typographer's marks

ampersand ( & )

asterisk ( * ) and asterism ( ⁂ )

at ( @ )

backslash ( )

bullet ( •, more )

dagger ( † ‡ )

degrees ( ° )

number sign ( # )

prime ( ′ )

tilde ( ~ )

underscore ( _ )

vertical bar/pipe ( | )

+ 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

& 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

符号的英文读法

． period 句号

≈ is approximately equal to 约等于号

， comma 逗号

＜ is less than 小于号

： colon 冒号

＞ is more than 大于号

； semicolon 分号

≮ is not less than 不小于号

！ exclamation 惊叹号

≯ is not more than 不大于号 question mark 问号

≤ 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

；所有格符号

％ per cent 百分之…

- dash 破折号

‰ per mill 千分之…

' ' single quotation marks 单引号

∞ infinity 无限大号

double quotation marks 双引号

∝ 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

＆ ampersand = and

π pi 圆周率

～ 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

＋ plus 加号；正号

∩ intersection of 交，通集

－ minus 减号；负号

∫ the integral of …的积分

± plus or minus 正负号

( ∑ sigma) summation of 总和

× is multiplied by 乘号

° degree 度

÷ is divided by 除号

′ minute 分

＝ is equal to 等于号

″ second 秒

≠ is not equal to 不等于号

＃ number …号

≡ is equivalent to 全等于号

℃ Celsius system 摄氏度

≌ is equal to or approximately equal to 等于或约等于号

＠ at 单价

R’ R prime

R” R double prime, R second prime

R1 R sub one

100° C one hundred degrees Centigrade

+ plus; positive

- minus; negative

´ multiplied by; times

¸ divided by

± plus or minus

= is equal to; equals

º is identically equal to

» is approximately equal to

( ) round brackets; parentheses

[ ] square brackets

{ } braces

a＞＞b a is much greater than b

a³ b a is greater than or equal to b

aµ b a varies directly as b

lognX logX to the base n

the cubic root of x

the nth root of x

x2 x square, x squared, the square of x

Xn

X to n factors; the nth power of x; x to the power n

x -8 x to the minus eighth power

ï xï the absolute value of x

the mean value of X

the sum of the terms indicated; summation of

D x or d x the increment of x

dx differential x

dy/dx the first derivative

respect to x

ò integral

¥ infinity

of y with

1/2 a half; one half

2/3 two thirds

5/123 five over a hundred and twenty-three

eight and three over fourths; eight and three quarters

0.01 O point O one; zero point zero one; nought point nought one

6 % 6 percent

3‰ 3 per mille

2 : 3 the ratio of two to three

r=xd r equals x multiplied by d

5´ 2=10 five times two equals ten

x3/8=y2 x raised to the third power divided by eight equals y squared

(a+b-c´ d)/e=f a plus b minus c multiplied by d, all divided by e equals f

y = (Wt-W)/x y equals

sub t minus W over x

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

W

本文标签： 读法符号斜线等于转义