常用數(shù)學術語的英語表達

1、.常用數(shù)學術語的英語表達：1 立方one cubic1 平方米one square metre幾何geometry點point線line面plane直線a straight曲線curved line近似值an approximate value垂直線a vertical水平線a horizontal line三角形的底the base of a triangle三角形的兩個腰the two sides of a triangle直角a rigt angle銳角an acute angle鈍角an obtuse angle長方形a rectangle正方形a square多邊形a polygon

2、圓心the centre of a circle圓的直徑the diameter of a circle圓的半徑the radius of a circle半圓a semicircle弧an arc圓柱體a cylinder球體a spheroid常用加減乘除的英語表達：四加五等于九If you add 4 to 5, you get 9.或： If you add 4 and 5, you get 9.五與四的和是九4 and 5 are / make 9.或： The sum of 5 and 4 is 9.或： Four plus five equals nine.五減二等于三If yo

3、u take 2 from 5, you get 3.或： 5 minus 2 equals 3.五與二之差為三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 6.二與三的積為六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： Ifyou divide2 into6,theansweris3.或： 6 divided by 2 equals 3.比較兩個數(shù)

4、字大小的英語表達：6大于56 is greater than 5.或： 6 is more than 5.6 小于76 is less than 7.平方、立方及四次方的英語表達：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.平方根立方根的英語表達：9 的平方根為3The square root of 9 is 3.27 的立方根為3The cube root of 27 is 3.正比反比的英語表達：A 與 B 成正比A is in

5、direct proportion to B.A 與 B 成反比A is in inverse proportion to B.兩直線平行或垂直的英語表達：直線 AB 平行于直線CDLine AB is parallel to Line CD直線 AB 垂直于直線CDLine AB is perpendicular to Line CD代數(shù)部分1。有關數(shù)學運算add,plussubtractdifferencemultiply,timesproductdivide 除divisibledividedevenly被整除dividenddivisor 因子，除數(shù)quotientremainderf

6、actorialpowerradicalsign,rootsign根號roundtotothenearest四舍五入2。有關集合unionproper subsetsolution set解集3。有關代數(shù)式、方程和不等式algebraic termlike terms,similar termsnumerical coefficientliteral coefficientinequality 不等式triangle inequalityrangeoriginal equationequivalent equationlinear equation線性方程 (e.g.5x +6=22)4。有關

7、分數(shù)和小數(shù)proper fractionimproper fraction.mixed numbervulgarfraction,commonfractionsimple fractioncomplex fractionnumeratordenominator(least)common denominator(最小 ) 公分母quarterdecimal fractioninfinite decimalrecurring decimaltenthsunit 十分位5。基本數(shù)學概念arithmetic meanweighted averagegeometric meanexponentbasec

8、ubesquare rootcuberootcommon logarithmdigitconstantvariable變量inversefunctioncomplementary functionlinear 一次的，線性的factorizationabsolute value絕對，值e.g.|-32|=32round off四舍五入6。有關數(shù)論natural numberpositive numbernegative numberodd integer,odd numbereven integer,even numberinteger,whole numberpositive whole n

9、umbernegative whole numberconsecutive numberrea lnumber,rationalnumberirrational(number)inversecomposite number 合數(shù)e.g.4,6,8,9,10,12,14,15prime number質數(shù) e.g.2,3,5,7,11,13,15 ? 注意：所有的質數(shù)(2 除外 ) 都是奇數(shù)，但奇數(shù)不一定是質數(shù)reciprocalcommon divisormultiple(least)commonmultiple( 最小 )(prime)factor(質 )common factorordina

10、ryscale,decimalscale十進制nonnegativetensunitsmodemediancommon ratio公比7。數(shù)列arithmetic progression(sequence) 等差數(shù)列geometric progression(sequence)等比數(shù)列approximate(anti)clockwise(逆 )cardinalordinal序數(shù)directproportiondistinctestimationparentheses 括號proportionpermutationcombinationtabletrigonometric functionuni

11、t 單位，位幾何部分8。所有的角alternate anglecorresponding anglevertical anglecentral erior angleexterior anglesupplement aryanglescomplementaryangleadjacent angleacute angleobtuse angleright angle 直角round anglestraight angleincluded angle 夾角9。所有的三角形equilateral trianglescalene triangleisosceles triangler

12、ight triangleobliqueinscribed triangle內(nèi)接三角形10。有關收斂的平面圖形，除三角形外semicircleconcentric circlesquadrilateralpentagonhexagonheptagonoctagonnonagondecagonpolygonparallelogramequilateralplanesquarerectangleregular polygonrhombustrapezoid 梯形11 。其它平面圖形arcline,straight lineline segmentparallel linessegment of a

13、 circle 弧形4.有關立體圖形cuberectangular solidregular solid/regular polyhedron正多面體 circular cylinderconespheresolid 立體的5.有關圖形上的附屬物altitudedepthsidecircumference,perimeterradiansurface areavolumearmcros ssectioncenter of acircle圓心chordradiusangle bisectordiagonaldiameteredge 棱face of a solidhypotenuseinclud

14、ed sideleg 三角形的直角邊medianofatrianglebase 底邊，底數(shù)(e.g.2 的 5 次方， 2 就是底數(shù) )oppositemidpointendpointvertex( 復數(shù)形式vertices)ercept 截距6.有關坐標coordinate systemrectangularcoordinate直角坐標系originabscissa 橫坐標ordinatenumberlinequadrantslopecomplex plane 復平面7.其它plane geometrytrigonometrybisectcircu

15、mscribeinscribe 內(nèi)切intersectperpendicularpythagoreantheorem勾股定理congruent 全等的multilateral多邊的其它1.單位類centpennynickel5dimedozen 打 (12 個 )score 廿 (20 個 )CentigradeFahrenheitquartgallon加侖 (1gallon=4quart)yard 碼metermicroninchfootminute分 ( 角度的度量單位，60 分=1 度)squaremeasurecubicmeterpint 品脫 ( 干量或液量的單位)2.有關文字敘述題，主要是有關商業(yè)intercalary yea