符号学习_9个符号学英语

+ 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

+ 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 greater 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{ open brace, open curly 左花括号

} close brace, close curly 右花括号( open parenthesis, open paren 左圆括号) close parenthesis, close paren 右圆括号

() brakets/ parentheses 括号[ open bracket 左方括号] close bracket 右方括号[] square brackets 方括号. period, dot 句号，点

| vertical bar, vertical virgule 竖线& ampersand, and, reference, ref 和，引用* asterisk, multiply, star, pointer 星号，乘号，星，指针

/ slash, divide, oblique 斜线，斜杠，除号// slash-slash, comment 双斜线，注释符# pound 井号\ backslash, sometimes escape 反斜线转义符，有时表示转义符或续行符

~ tilde 波浪符. full stop 句号, comma 逗号: colon 冒号; semicolon 分号? question mark 问号! exclamation mark (英式英语) exclamation point (美式英语)

apostrophe 撇号- hyphen 连字号-- dash 破折号... dots/ ellipsis 省略号" single quotation marks 单引号"" double quotation marks 双引号

‖ parallel 双线号& ampersand = and～ swung dash 代字号§ section; division 分节号→ arrow 箭号;参见号