+ 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 more 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)?∴ 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 pace, open curly 左花括號(hào) } close pace, 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) () pakets/ parentheses 括號(hào) [ open packet 左方括號(hào) ] close packet 右方括號(hào) [] square packets 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(wèn)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(jiàn)號(hào) - hyphen 中劃線 _ underscore 下劃線

創(chuàng)作挑戰(zhàn)賽新人創(chuàng)作獎(jiǎng)勵(lì)來(lái)咯，堅(jiān)持創(chuàng)作打卡瓜分現(xiàn)金大獎(jiǎng)

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