奧數(shù)英文標(biāo)點(diǎn)符號(hào)
+ plus加號(hào);正號(hào)
- minus減號(hào);負(fù)號(hào)
±plus or minus正負(fù)號(hào)
×is multiplied by乘號(hào)
÷is divided by除號(hào)
。絠s equal to等于號(hào)
≠is not equal to不等于號(hào)
≡is equivalent to全等于號(hào)
≌is equal to or approximately equal to等于或約等于號(hào)
≈is approximately equal to約等于號(hào)
。糹s less than小于號(hào)
>is greater than大于號(hào)
≮is not less than不小于號(hào)
≯is not more than不大于號(hào)
≤is less than or equal to小于或等于號(hào)
≥is more than or equal to大于或等于號(hào)
% per cent百分之…
‰per mill千分之…
∞infinity無(wú)限大號(hào)
∝varies as與…成比例
√(square) root平方根
∵since; because因?yàn)?/p>
∴hence所以
∷equals, as (proportion)等于,成比例
∠angle角
⌒semicircle半圓
⊙circle圓
○circumference圓周
πpi 圓周率
△triangle三角形
⊥perpendicular to垂直于
∪union of并,合集
∩intersection of 交,通集
∫the integral of …的積分
∑(sigma) summation of總和
°degree度
′minute分
″second秒
℃Celsius system攝氏度
{open brace, open curly左花括號(hào)
}close brace, close curly右花括號(hào)
(open parenthesis, open paren左圓括號(hào)
)close parenthesis, close paren右圓括號(hào)
。ǎ brakets/ parentheses括號(hào)
[open bracket 左方括號(hào)
]close bracket 右方括號(hào)
[] square brackets方括號(hào)
。period, dot句號(hào),點(diǎn)
|vertical bar, vertical virgule豎線
&ersand, and, reference, ref和,引用
*asterisk, multiply, star, pointer星號(hào),乘號(hào),星,指針
/slash, divide, oblique 斜線,斜杠,除號(hào)
//slash-slash, comment 雙斜線,注釋符
#pound井號(hào)
backslash, sometimes escape反斜線轉(zhuǎn)義符,有時(shí)表示轉(zhuǎn)義符或續(xù)行符
~tilde波浪符
。full stop句號(hào)
,comma逗號(hào)
。篶olon冒號(hào)
;semicolon分號(hào)
?question mark問號(hào)
!exclamation mark (英式英語(yǔ)) exclamation point (美式英語(yǔ))
‘a(chǎn)postrophe撇號(hào)
-hyphen連字號(hào)
——dash 破折號(hào)
……dots/ ellipsis省略號(hào)
single quotation marks 單引號(hào)
double quotation marks 雙引號(hào)
‖ parallel 雙線號(hào)
&ersand = and
~swung dash 代字號(hào)
§section; division 分節(jié)號(hào)
→arrow 箭號(hào);參見號(hào)
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