主要数学符号的英文读法.docx

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1、主要数学符号的英文读法主要数学符号的英文读法 is less than is more than is not less than is not more than is less than or equal to 小于或等于号 - hyphen 连字符 is more than or equal to 大于或等于号 apostrophe 省略号,英文中省略字符用的撇号;所有格符号 percent dash 破折号 per mille infinity 无限大号 varies as 与成比例 ( ) parentheses 圆括号 (square) root 平方根 square bracke

2、ts 方括号 since; because 因为 French quotes 法文引号;书名号 hence 所以 ellipsis 省略号 equals, as (proportion) 等于，成比例 tandem colon 双点号 angle 角 ditto 双点号 semicircle 半圆 parallel 双线号 circle 圆 virgule 斜线号 circumference 圆周 swung dash 代字号 triangle 三角形 section; division 分节号 perpendicular to 垂直于 arrow 箭号；参见号 union of 并，合集 i

3、ntersection of 交，通集 the integral of 的积分 plus or minus 正负号 summation of 总和 is multiplied by 乘号 degree 度 is divided by 除号 minute 分 second 秒 is not equal to 不等于号 is equivalent to 全等于号 Celsius degree 摄氏度 is equal to or approximately equal to 等于或约等于号 + plus 加号；正号 - minus 减号；负号 plus or minus 正负号 is multip

4、lied 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 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

5、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 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

6、 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,

7、 vertical virgule 竖线 & ampersand, and, reference, ref 和，引用 / 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

8、 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 _ underscore 下划线 + plus(positive正的) - minus plus or minus * multiplied by divided by = be eq

9、ual to be approximately equal to round brackets(parenthess) square brackets braces because therefore less than or equal to greater than or equal to infinity LognX logx to the base n f(x) the function of x dx diffrencial of x x+y x plus y (a+b) a=b ab ab ab ab x x2 x3 xn x 3x nx 6 % 3 3 ni=1xi ni=1xi

10、 ab ( ) 2 : 3 D x or d x dx dy/dx 1/2 2/3 5/123 0.01 r=xd 5* 2=10 x3/8=y2 (a+b-c* d)/e=f bracket a plus b bracket closed a equals b a isnt equal to b a is greater than b a is much greater than b a is greater than or equal to b x approches infinity x square x cube the nth power of x the square root o

11、f x the cube root of x the nth root of x 6 percent 3 per mille three peimill the summation of x where x goes from 1to n the product of x sub i where igoes from 1to n integral betweens a and b is approximately equal to round brackets; parentheses square brackets braces the ratio of two to three the i

12、ncrement of x differential x the first derivative of y with respect to x a half; one half two thirds five over a hundred and twenty-three O point O one; zero point zero one; nought point nought one r equals x multiplied by d five times two equals ten x raised to the third power divided by eight equa

13、ls y squared a plus b minus c multiplied by d all divided by e equals f y = (Wt-W)/x y equals W sub t minus W over x alpha alfa 阿耳法 beta beta 贝塔 gamma gamma 伽马 deta delta 德耳塔 epsilon epsilon 艾普西隆 zeta zeta 截塔 eta eta 艾塔 theta ita 西塔 iota iota 约塔 kappa kappa 卡帕 lambda lambda 兰姆达 mu miu 缪 nu niu 纽 xi ksi 可塞 omicron omikron 奥密可戎 pi pai 派 rho rou 柔 sigma sigma 西格马 tau tau 套 upsilon jupsilon 衣普西隆 phi fai 斐 chi khai 喜 psi psai 普西 omega omiga 欧米伽