ACT数学词汇-带翻译

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1、naturalnumber自然数wholenumber非负整数integer整数consecutivenumbers连续整数positivenumber正数negativenumber负数nonnegativenumber非负数oddnumber奇数evennumber偶数irrational无理数rationalnumber有理数imaginarynumber虚数realnumber实数directlyproportionalto成正比inverse/reciprocal倒数primenumber质数inverselyproportionalto成反比commondivisor

2、公约数compositenumber合数leastcommonmultiple最小公倍数greatestcommonfactor敲大公因数commondifferenee公差commonratio公比properfraction真分数ordinaryscale/decimalscale十进制mixednumber带分数improperfraction假分数complexfraction繁分数simplefraction简分数numerator分了vulgarfraction/commonfraction普通分数commondenominator公分母denominator分母de

3、cimalfraction纯小数quarter四分之一recurringdecimal循环小数infinitedecimal无穷小数tenthsunit/digit十分位、十分位数字digit数字0-9中任何一个onesunit/digit个位、个位数字tensunit/digit十位、十位数字add/plus/sum力口unitsdigit个位数字multiply/times/product乘subtract/minus/differenee减divisible可被整除的divide除over除以quotient商remainder余数absolutevalue绝对值divid

4、edevenly被整除base底数power幕square平方exponent指数radicalsign/rootsign根号cube立方cuberoot立方根squareroot平方根union并集roundoff/up/downtothenearest四舍五入solutionset解集propersubset真子集geometricsequenee等比数歹Qarithmeticsequence等差数列combination组合permutation排歹llliketerms/similarterms同类项numerical/literalcoefficient数字系数、字母系

5、数polynomial多项式originalequation原方程equivalentequation等价方程inequality不等式quadraticequation二次方程variable变量constant常量inversefunction反函数range值域domain定义域linearfunction线性方程quadraticfunction二次函数coordinatesystem处标系rectangularcoordinate直角坐标origin原点abscissa/x-axis横轴ordinate/y-axis纵轴quadrant象限slope斜率intercep

6、t截距clockwise顺时针counterclockwise逆时针straightline直线ray射线linesegment线段parallellines平行线arc弧segmentofacircle闘弧sector扇形plane平而acuteangle锐角obtuseangle钝角rightangle直角roundangle周角straightangle平角supplementaryangle余角complementaryangle补角includedangle夹角verticalangle对顶角adjacentangle邻角alternateangle内错角corresp

7、ondingangle同位角interiorangle内角exteriorangle夕卜角congruentangle等角equilateraltriangle等边三角形scalenetriangle不等边三角形isoscelestriangle等腰三角形righttriangle直角三角形obliquetriangle斜三角形inscribedtriangle内接三角形congruenttriangle全等三角形similartriangle相似三角形multilateral多