2024年4月20日发(作者:)
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'=' '
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