AMC常见数学词汇总结（A-E）

AMC常见数学词汇总结（A-E）Aabscissa横坐标absolutevalue绝对值acuteangle锐角acceleration加速度algorithm算法altitude三角形的顶垂线angleofinclination倾斜角angleofprojection投射角发射角approximation近似arc弧线arccos反余弦arcsin反正弦arclength弧长arithmeticmean算术平均arithmeticsequence/progression等差数列asymmetric/symmetric非对称/对称atmosphericpressure大气压axiom公理axis轴，坐标轴Bbarchart条状图base指数函数或者三角形的底baseangles等腰三角形对称的底脚billion十亿binarycode二进制代码binaryrelation二元关系binomialcoefficient二项式系数binomialtheorem二项式定理bound边界boundedfunction有界函数branch(双曲线)分支bridgesofKonigsberg哥尼思堡桥CCalculus微积分centroidorcentreofmass质心chord弦circumcentre三角形的外接圆的圆心circumference圆周长closedcurve封闭曲线coefficient系数combination组合commondifference/ratio

公差/公比commonfraction真分数commute交换component分量，分支composition合成，复合condition条件(necessary/sufficient必要充分)cone/conic圆椎体congruence同余，同余数congruentfigures

全等图形constantspeed匀速contain包含含有convex凸起的coordinates坐标coprime互质/素(没有公因子除了1)counterexample反例cube立方体cuberoot立方根cubicequation三次方程cylinder圆柱Ddeceleration减速度acceleration加速decimalfraction十进制分数decimalplaces(十进制)小数位repeatingdecimal循环小数decreasingsequence递减序列definiteintegral定积分degree度denominator分母density密度denumerable可数的derivedfunction导函数determinant行列式dimension维度directlyproportional成正比的directproof直接证明disc圆盘discriminant二次方程判别式(b⑵-4ac)disjoint不相交的distancebetweentwolines/points/apointtoaline两直线或两点之间或点到直线间的距离distinguish分辨distinguishable可分辨的distributive分配的divisor除数因子domain定义域doubleroot两重根Eedge边，边界efficiency效率effort力，作用elastic弹性element元素elementaryfunction初等函数ellipse椭圆ellipsoid椭圆球形ellipticparaboloid椭圆抛物线emptyset空集endpoint端点energy能量enumerable可数的equality相等equilateral等边equilibrium平衡equivalent等价error误差estimate估计量estimationevent事件(概率中的)expectedvalue期望值exponent指