美国数学竞赛AMC12词汇

Aabbreviation简写符号；简写absoluteerror绝对误差absolutevalue绝对值accuracy准确度acuteangle锐角acute-angledtriangle锐角三角形add加addition加法additionformula加法公式additionlaw加法定律additionlaw(ofprobability)（概率）加法定律additiveproperty可加性adjacentangle邻角adjacentside邻边algebra代数algebraic代数的algebraicequation代数方程algebraicexpression代数式algebraicfraction代数分式；代数分数式algebraicinequality代数不等式algebraicoperation代数运算alternateangle（交）错角alternatesegment交错弓形altitude高；高度；顶垂线；高线ambiguouscase两义情况；二义情况amount本利和；总数analysis分析；解析analyticgeometry解析几何angle角angleatthecentre圆心角angleatthecircumference圆周角anglebetweenalineandaplane直与平面的交角anglebetweentwoplanes两平面的交角anglebisection角平分anglebisector角平分线；分角线angleinthealternatesegment交错弓形的圆周角angleinthesamesegment同弓形内的圆周角angleofdepression俯角angleofelevation仰角angleofgreatestslope最大斜率的角angleofinclination倾斜角angleofintersection相交角；交角angleofrotation旋转角angleofthesector扇形角anglesumofatriangle三角形内角和anglesatapoint同顶角annum(X%perannum)年（年利率X%）anti-clockwisedirection逆时针方向；返时针方向anti-logarithm逆对数；反对数anti-symmetric反对称apex顶点approach接近；趋近approximatevalue近似值approximation近似；略计；逼近Arabicsystem阿刺伯数字系统arbitrary任意arbitraryconstant任意常数arc弧arclength弧长arc-cosinefunction反余弦函数arc-sinfunction反正弦函数arc-tangentfunction反正切函数area面积arithmetic算术arithmeticmean算术平均；等差中顶；算术中顶arithmeticprogression算术级数；等差级数arithmeticsequence等差序列arithmeticseries等差级数arm边arrow前号ascendingorder递升序ascendingpowersofXX的升幂associativelaw结合律assumedmean假定平均数assumption假定；假设average平均；平均数；平均值averagespeed平均速率axiom公理axis轴axisofparabola拋物线的轴axisofsymmetry对称轴Bbacksubstitution回代barchart棒形图；条线图；条形图；线条图base（1）底；（2）基；基数baseangle底角basearea底面baseline底线basenumber底数；基数baseoflogarithm对数的底bearing方位（角）；角方向（角）bell-shapedcurve钟形图bias偏差；偏倚billion十亿binarynumber二进数binaryoperation二元运算binaryscale二进法binarysystem二进制binomial二项式binomialexpression二项式bisect平分；等分bisectionmethod分半法；分半方法bisector等分线；平分线boundarycondition边界条件boundaryline界（线）；边界bounded有界的boundedabove有上界的；上有界的boundedbelow有下界的；下有界的boundedfunction有界函数brace大括号bracket括号breadth阔度brokenlinegraph折线图Ccalculation计算calculator计算器；计算器cancel消法；相消canellationlaw消去律capacity容量Cartesiancoordinates笛卡儿坐标Cartesianplane笛卡儿平面category类型；范畴centralline中线centraltendency集中趋centre中心；心centreofacircle圆心centroid形心；距心certainevent必然事件chance机会changeofbase基的变换changeofsubject主项变换changeofvariable换元；变量的换chart图；图表checking验算chord弦chordofcontact切点弦circle圆circular圆形；圆的circularfunction圆函数；三角函数circularmeasure弧度法circumcentre外心；外接圆心circumcircle外接圆circumference圆周circumradius外接圆半径circumscribedcircle外接圆class区；组；类classboundary组界classinterval组区间；组距classlimit组限；区限classmark组中点；区中点classification分类clnometer测斜仪clockwisedirction顺时针方向closedconvexregion闭凸区域closedinterval闭区间coefficient系数coincide迭合；重合collectionofterms并项collinear共线collinearplanes共线面column(1)列；纵行；(2)柱combination组合commonchord公弦commondenominator同分母；公分母commondifference公差commondivisor公约数；公约commonfactor公因子；公因子commonlogarithm常用对数commonmultiple公位数；公倍commonratio公比commontangetn公切commutativelaw交换律comparable可比较的compass罗盘compassbearing罗盘方位角compasses圆规compassesconstruction圆规作图complement余；补余complementaryangle余角complementaryevent互补事件complementaryprobability互补概率completingthesquare配方complexnumber复数complexroot复数根compositenumber复合数；合成数compoundbarchart综合棒形图compounddiscount复折扣compoundinterest复利；复利息computation计算computer计算机；电子计算器concave凹concavedownward凹向下的Ddata数据decagon十边形decay衰变decayfactor衰变因子decimal小数decimalplace小数位decimalpoint小数点decimalsystem十进制decrease递减decreasingfunction递减函数；下降函数decreasingsequence递减序列；下降序列decreasingseries递减级数；下降级数decrement减量deduce演绎deduction推论deductivereasoning演绎推理definite确定的；定的distance距离distanceformula距离公式distinctroots相异根distincrsolution相异解distribution公布distrivutivelaw分配律divide除dividend(1)被除数；(2)股息divisible可整除division除法divisionalgorithm除法算式divisor除数；除式；因子divisorofzero零因子dodecagon十二边形dot点doubleroot二重根dueeast/south/west/north向东/南/西/北definiton定义degree(1)度；(2)次degreeofapolynomial多项式的次数degreeofaccuracy准确度degreeofprecision精确度delete删除；删去denarynumber十进数denaryscale十进法denarysystem十进制denominator分母dependence(1)相关；(2)应变dependentevent(s)相关事件；相依事件；从属事件dependentvariable应变量；应变数depreciation折旧descendingorder递降序descendingpowersofXX的降序detachedcoefficients分离系数(法)deviation偏差；变差deviationfromthemean离均差diagonal对角diagram图；图表diameter直径difference差digit数字dimension量；量网；维(数)directproportion正比例directtax,directtaxation直接税directvariation正变（分）directedangle有向角directednumber有向数direction方向；方位discontinuous间断(的)；非连续(的)；不连续(的)discount折扣discountpercent折扣百分率discrete分立；离散discretedata离散数据；间断数据discriminant判别式dispersion离差displacement位移disprove反证Eedge棱；边elimination消法eliminationmethod消去法；消元法elongation伸张；展empiricaldata实验数据empiricalformula实验公式empiricalprobability实验概率；经验概率enclosure界限endpoint端点entiresurd整方根equal相等equalratiostheorem等比定理equalroots等根equality等(式)equalitysign等号equation方程equationinoneunknown一元方程equationintwounknowns(variables)二元方程equationofastraightline直线方程equationoflocus轨迹方程equiangular等角(的)extremevalue极值equidistant等距(的)equilaeral等边(的)equilateralpolygon等边多边形equilateraltriangle等边三角形equivalent等价(的)error误差escribedcircle旁切圆estimate估计；估计量Euler'sformula尤拉公式；欧拉公式evaluate计值evenfunction偶函数evennumber偶数evenlydistributed均匀分布的