各种符号英文名称
+ 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
'exclaim'＝'!'
'at'＝'@'
'numbersign'＝'#'
'dollar'＝'$'
'percent'＝'%'
'caret'＝'^'
'ampersand'＝'&'
'asterisk'＝'*'
'parenleft'＝'('
'parenright'＝')'
'minus'＝'-'
'underscore'＝'_'
'equal'＝'='
'plus'＝'+'
'bracketleft'＝'['
'braceleft'＝'{'
'bracketright'＝']'
'braceright'＝'}'
'semicolon'＝';'
'colon'＝':'
'quote'＝'''
'doublequote'＝'"'
'backquote'＝'''
'tilde'＝'~'
'backslash'＝'\'
'bar'＝'|'
'comma'＝','
'less'＝'<'
'period'＝'.'
'greater'＝'>'
'slash'＝'/'
'question'＝'?'
'space'＝' '

-
is called dash


． 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 quotation 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 双线号
／ 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
± 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…equals不等于成比例
√ (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
＃ number …号
℃ Celsius system 摄氏度
1、~ : tilde
2、` : one of the accent marks: the grave sign
3、#: the number sign OR pound sign OR hash/gate mark,etc. etc.
4、$: dollar sign
5、%: percentage sign
6、^: another accent mark: the circumflex sign (the third commonly encountered accent mark is called the acute sign as in é)
7、&: ampersand
8、{}: braces (open & close)
9、[]: (square) brackets (open & close)
10、(): parentheses (open & close)
11、': apostrophe
12、< >: angle/broken/pointed bracket
13、|: (vertical) bar
14、\: back slash
14.5 /: slash or virgule
15、·: ??? ellipsis
16、￥ : yen symbol
电话上的 * 键通常叫做 star key，# 叫做 pound key.
! exclamation
" double quote
# number sign
$ dollar
% Percent
& ampersand
' apostrophe
() parentheses/round brackets/curved brackets
* asterisk
+ plus
, comma
- hyphen/minus
. full stop/period/dot
/ slash
: colon
; semicolon
< less than
= equals
> greater than
? question
@ at
[] square brackets
\ backslash
^ caret
_ underscore
` grave accent
{} curly brackets/braces
| vertical bar
~ tilde