搜索
1代数ALGEBRA1.数论naturalnumber自然数positivenumber正数negativenumber负数oddinteger,oddnumber奇数eveninteger,evennumber偶数integer,wholenumber整数Positivewholenumber正整数negativewholenumber负整数consecutivenumber连续整数realnumber,rationalnumber实数,有理数irrational（number）无理数inverse倒数compositenumber合数e.g.4,6,8,9,10,12,14,15…primenumber质数e.g.2,3,5,7,11,13,15…reciprocal倒数commondivisor公约数multiple倍数(minimum)commonmultiple(最小)公倍数(prime)factor(质)因子commonfactor公因子ordinaryscale,decimalscale十进制nonnegative非负的2tens十位units个位mode众数mean平均数median中值commonratio公比2.基本数学概念arithmeticmean算术平均值weightedaverage加权平均值geometricmean几何平均数exponent指数，幂base乘幂的底数,底边cube立方数，立方体squareroot平方根cuberoot立方根commonlogarithm常用对数digit数字constant常数variable变量inversefunction反函数complementaryfunction余函数linear一次的，线性的factorization因式分解3absolutevalue绝对值roundoff四舍五入数学3.基本运算add，plus加subtract减difference差multiply,times乘product积divide除divisible可被整除的dividedevenly被整除dividend被除数，红利divisor因子，除数，公约数quotient商remainder余数factorial阶乘power乘方radicalsign,rootsign根号roundto四舍五入tothenearest四舍五入4.代数式，方程，不等式algebraicterm代数项liketerms,similarterms同类项numericalcoefficient数字系数4literalcoefficient字母系数inequality不等式triangleinequality三角不等式range值域originalequation原方程equivalentequation同解方程，等价方程linearequation线性方程(e.g.5x+6=22)5.分数，小数properfraction真分数improperfraction假分数mixednumber带分数vulgarfraction，commonfraction普通分数simplefraction简分数complexfraction繁分数numerator分子denominator分母(least)commondenominator（最小）公分母quarter四分之一decimalfraction纯小数infinitedecimal无穷小数recurringdecimal循环小数tenthsunit十分位6.集合union并集5propersubset真子集solutionset解集7.数列arithmeticprogression(sequence)等差数列geometricprogression(sequence)等比数列8.其它approximate近似(anti)clockwise(逆)顺时针方向cardinal基数ordinal序数directproportion正比distinct不同的estimation估计，近似parentheses括号proportion比例permutation排列combination组合table表格trigonometricfunction三角函数unit单位,位几何GEOMETRY1.角alternateangle内错角6correspondingangle同位角verticalangle对顶角centralangle圆心角interiorangle内角exteriorangle外角supplementaryangles补角complementaryangle余角adjacentangle邻角acuteangle锐角obtuseangle钝角rightangle直角roundangle周角straightangle平角includedangle夹角2.三角形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oblique斜三角形inscribedtriangle内接三角形3.收敛的平面图形，除三角形外semicircle半圆7concentriccircles同心圆quadrilateral四边形pentagon五边形hexagon六边形heptagon七边形octagon八边形nonagon九边形decagon十边形polygon多边形parallelogram平行四边形equilateral等边形plane平面square正方形，平方rectangle长方形regularpolygon正多边形rhombus菱形trapezoid梯形4.其它平面图形arc弧line,straightline直线linesegment线段parallellines平行线segmentofacircle弧形85.立体图形cube立方体，立方数rectangularsolid长方体regularsolid/regularpolyhedron正多面体circularcylinder圆柱体cone圆锥sphere球体solid立体的6.图形的附属概念planegeometry平面几何trigonometry三角学bisect平分circumscribe外切inscribe内切intersect相交perpendicular垂直Pythagoreantheorem勾股定理（毕达哥拉斯定理）congruent全等的multilateral多边的altitude高depth深度side边长circumference,perimeter周长radian弧度9surfacearea表面积volume体积arm直角三角形的股crosssection横截面centerofacircle圆心chord弦diameter直径radius半径anglebisector角平分线diagonal对角线化edge棱faceofasolid立体的面hypotenuse斜边includedside夹边leg三角形的直角边median（三角形的）中线base底边，底数（e.g.2的5次方，2就是底数）opposite直角三角形中的对边midpoint中点endpoint端点vertex(复数形式vertices)顶点tangent切线的transversal截线intercept截距107.坐标coordinatesystem坐标系rectangularcoordinate直角坐标系origin原点abscissa横坐标ordinate纵坐标numberline数轴quadrant象限slope斜率complexplane复平面