+　 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)
＝　is 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)
＜　is 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?。ㄆ椒剑└?br> ∵　since; because　因?yàn)?br> ∴　hence　所以
∷　equals, as (proportion)　等于，成比例
∠　angle　角
⌒　semicircle　半圓
⊙　circle　圓
○　circumference　圓周
π　pi 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)
() brackets/ 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
&　ampersand, 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)
:　colon　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))
'　apostrophe　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)
&　ampersand = 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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