常见符号 ：

＜        is less than    小于号
＞        is more than   大于号
≮        is not less than  
≯        is not more than
≤        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,英文中省略字符用的撇号;所有格符号
％        percent 
－        dash 破折号 
‰        per mille
∞        infinity 无限大号 
∝        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
～        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
∩        intersection of 交，通集  
∫        the integral of …的积分 
±        plus or minus 正负号 
∑        summation of 总和 
×        is multiplied by 乘号 
°        degree 度 
÷        is divided by 除号  
′        minute 分
″        second 秒 
≠        is not equal to 不等于号  
≡        is equivalent to 全等于号  
℃        Celsius degree 摄氏度 
≌        is equal to or approximately equal to 等于或约等于号

希腊字母读法：

电脑键盘符号读法：

` backquote 反引号
~ tilde
! exclam
@ at
# numbersign,英语国家是hash，美语是pound,音乐里作sharp,如：C#
$ dollar
% percent
^ caret
& ampersand
* asterisk,star(美语),数学公式中作multiply
( parenleft,opening parentheses
) parenright,closing paretheses
- minus;hyphen连字符,不读
_ underscore
+ plus
= equal
[ bracketleft,opening bracket
] bracketright,closing bracket
{ braceleft
} braceright
; semicolon
: colon
' quote
" doublequote
/ slash
\ backslash 反斜杠
| bar
, comma
< less
> greater
. period
? question
  space 空格