常用数学术语的英语表达

1、1 立方one cubic1 平方米one square metre几何geometry点八、point线line面plane直线a straight曲线curved line近似值an approximate value垂直线a vertical水平线a horizontal line三角形的底the base of a triangle三角形的两个腰the two sides of a triangle直角a rigt angle锐角an acute angle钝角an obtuse angle长方形a rectangle正方形a square多边形a polygon圆心the centr

2、e of a circle圆的直径the diameter of a circle圆的半径the radius of a circle半圆a semicircle弧an arc圆柱体a cylinder球体a spheroid常用加减乘除的英语表达：四加五等于九If you add 4 to 5, you get 9.或： If you add 4 and 5, you get 9.五与四的和是九4 and 5 are / make 9.或： The sum of 5 and 4 is 9.或： Four plus five equals nine.五减二等于三If you take 2 fr

3、om 5, you get 3.或： 5 minus 2 equals 3.五与二之差为三The difference between 5 and 2 is 3.二乘三等于六2 times 3 is / equals 6.或： 3 multiplied by 2 equals 6.二与三的积为六The proudct of 2 and 3 is 6.六除以二等于三If you divide 6 by 2, the answer is 3.或： If you divide 2 into 6, the常用数学术语的英语表达：answer is或： 6 divided by 2 equals 3.3

4、.比较两个数字大小的英语表达：6 大于 56 is greater than 5.或： 6 is more than 5.6 小于 76 is less than 7.平方、立方及四次方的英语表达：3 的平方等于 9The square of 3 is 9.3 的立方等于 27The cube of 3 is 27.3 的四次方等于 81The fourth power of 3 is / equals 81.9 的平方根为 327 的立方根为 3平方根立方根的英语表达：The square root of 9 is 3.The cube root of 27 is 3.正比反比的英语表达：A

5、 is in direct proportion to B.A is in inverse proportion to B.A与B成正比A 与 B 成反比两直线平行或垂直的英语表达：直线 AB平行于直线 CD Line AB is parallel to Line CD直线 AB垂直于直线 CD Line AB is perpendicular to Line CD 代数部分1。有关数学运算 add,plusdifference product divisible dividend quotient factorial radicalsign,rootsign 根号 tothe nearest

6、四舍五入subtract multiply,times divide 除 dividedevenly 被整除 divisor 因子，除数 remainder power roundto2。有关集合union solution set 解集3。有关代数式、方程和不等式proper subsetalgebraic term numerical coefficient inequality 不等式 range equivalent equation 4。有关分数和小数like terms,similar termsliteral coefficienttriangle inequality orig

7、inal equationlinear equation 线性方程 (e.g.5 x +6=22)proper fractionimproper fractionmixed number simple fraction numerator (least)common denominator( 最小 ) 公分母 decimal fraction recurring decimal5。基本数学概念 arithmetic mean geometric mean base square root common logarithm constant inversefunction linear 一次的，

8、线性的 absolute value 绝对值，6。有关数论 natural number negative number even integer,even number positive whole number consecutive number irrational(number) composite number 合数 prime number 质数 e.g.2,3,5,7,11,13,15 不一定是质数 common divisor common factor nonnegative units median7。数列 arithmetic progression(sequence)

9、 等差数列 approximate cardinal directproportion estimation proportion combination trigonometric function8。所有的角 alternate angle vertical anglevulgar fraction,common fraction complex fraction denominator quarter infinite decimal tenthsunit 十分位weighted average exponent cube cuberoot digit variable 变量 compl

10、ementary function factorization e.g.|-32|=32 round off 四舍五入positive number odd integer,odd number integer,whole number negative whole number rea lnumber,rational number inverse e.g.4,6,8,9,10,12,14,15 注意：所有的质数 (2 除外 )都是奇数，但奇数 reciprocalmultiple (least)common multiple( 最小 ) (prime)factor( 质 ) ordinar

11、yscale,decimalscale 十 进 制 tens mode common ratio 公比geometric progressi on( seque nee)等比数歹 U (anti)clockwise( 逆) ordinal 序数 distinct pare ntheses 括号 permutation tableunit 单位，位几何部分corresponding angle central angleinterior angle supplement aryangles adjacent angle obtuse angle round angle included angl

12、e 夹角9。所有的三角形equilateral triangle isosceles triangle oblique10。有关收敛的平面图形，除三角形外 semicircle quadrilateral hexagon octagon decagon parallelogram plane rectangle rhombus11。其它平面图形 arc line segment segment of a circle 弧形12. 有关立体图形cube regular solid/regular polyhedron 正多面体 cone solid 立体的13. 有关图形上的附属物 altitu

13、de side radian volume cros ssection chord angle bisector diameter face of a solid included side medianofatriangle opposite endpoint tangentexterior angle complement aryangle acute angle right angle 直角 straight angle scalene triangle right triangle inscribed triangle 内接三角形 concentric circles pentagon

14、 heptagon nonagon polygon equilateral square regular polygon trapezoid 梯形 line,straight line parallel lines rectangular solid circular cylinder spheredepth circumference,perimeter surface area arm center of acircle 圆心 radius diagonal edge 棱 hypotenuse leg 三角形的直角边base底边，底数（e.g.2的5次方，2就是底数） midpointve

15、rtex（ 复数形式 vertices） transversalintercept 截距14. 有关坐标 coordinate system origin ordinate quadrant complex plane 复平面15. 其它 plane geometry bisect inscribe 内切 perpendicular congruent 全等的 其它1. 单位类 cent nickel5 dozen 打 （12 个） Centigrade quart yard 码 micron foot squaremeasure pint 品脱 （ 干量或液量的单位 ）2. 有关文字叙述题，主要是有关商业 intercalary year（leapyear） 闰年 （366 天 ） depreciation discount profit simple interest dividend decrease by increase by list price per capita retail pricerectangular coordinate 直 角 坐 标 系 abscissa横坐标 numberline slopetrigonometry circumscribe intersect pythagorean theorem 勾 股 定 理