特殊符號(hào)的英文讀法
＜ is less than
＞ is more than
≮ is not less than  
≯ is not more than
≤ is less than or equal to 小于或等于號(hào)
- hyphen 連字符  
≥ is more than or equal to 大于或等于號(hào)
' apostrophe 省略號(hào),英文中省略字符用的撇號(hào);所有格符號(hào)
％ percent
－ dash 破折號(hào)
‰ per mille
∞ infinity 無(wú)限大號(hào)
∝ varies as 與…成比例
( ) parentheses 圓括號(hào)  
√ (square) root 平方根
[ ] square brackets 方括號(hào)  
∵ since; because 因?yàn)?
《 》 French quotes 法文引號(hào);書名號(hào)  
∴ hence 所以
… ellipsis 省略號(hào)
∷ equals, as (proportion) 等于，成比例
¨ tandem colon 雙點(diǎn)號(hào)
∠ angle 角
∶ ditto 雙點(diǎn)號(hào)
⌒ semicircle 半圓
‖ parallel 雙線號(hào)
⊙ circle 圓
／ virgule 斜線號(hào)  
○ circumference 圓周
～ swung dash 代字號(hào)
△ triangle 三角形
§ section; division 分節(jié)號(hào)
⊥ perpendicular to 垂直于
→ arrow 箭號(hào)；參見(jiàn)號(hào)
∪ union of 并，合集
∩ intersection of 交，通集  
∫ the integral of …的積分
± plus or minus 正負(fù)號(hào)
∑ summation of 總和
× is multiplied by 乘號(hào)
° degree 度
÷ is divided by 除號(hào)  
′ minute 分
″ second 秒
≠ is not equal to 不等于號(hào)  
≡ is equivalent to 全等于號(hào)  
℃ Celsius degree 攝氏度
≌ is equal to or approximately equal to 等于或約等于號(hào)


計(jì)算機(jī)編成常用符號(hào)英語(yǔ)讀音
` backquote 反引號(hào)
~ tilde
! exclam
@ at
# numbersign,英語(yǔ)國(guó)家是hash，美語(yǔ)是pound,音樂(lè)里作sharp,如C#
$ dollar
% percent
^ caret
& ampersand
* asterisk,star(美語(yǔ)),數(shù)學(xué)公式中作multiply
( parenleft,opening parentheses
) parenright,closing paretheses
- minus;hyphen連字符,不讀
_ 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