我只爱摄影
+ plus- minus* times/ divide几次方 power= equal不等于 not equal< less than> greater than小于等于 less than or equal大于等于 greater than or equal开方 square平方根 square root
贪吃的懒妞
1.addition 加法 2.subtraction 减法 3.multiplication 乘法 4.division 除法 5.plus 加 6.minus 减 7.times 乘 8.divided by 除 9.equal 等于 10.sqrt 开平方根 、开根号
井中月2500
.period 句号,comma 逗号:colon 冒号;semicolon 分号!exclamation 惊叹号?question mark 问号 ̄hyphen 连字符'apostrophe 省略号;所有格符号—dash 破折号‘ ’single quotation marks 单引号“ ”double quotation marks 双引号( )parentheses 圆括号[ ]square brackets 方括号《 》French quotes 法文引号;书名号...ellipsis 省略号¨tandem colon 双点号"ditto 同上‖parallel 双线号/virgule 斜线号&ampersand = and~swung dash 代字号§section; division 分节号→arrow 箭号;参见号+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 恒等于号≌is identical to 全等于号≈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πpi 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#number …号℃Celsius system 摄氏度@at 单价