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
X n 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
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
X n 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